| 
2H001
 | 
Optical fibers
 | 
| 
2H002
 | 
Exposure control for cameras
 | 
| 
2H004
 | 
Phototypesetting
 | 
| 
2H005
 | 
DEVELOPERS FOR ELECTROPHOTOGRAPHY
 | 
| 
2H006
 | 
EYEGLASSES
 | 
| 
2H011
 | 
FOCUSING
 | 
| 
2H012
 | 
Holders for sensitive materials and originals
 | 
| 
2H013
 | 
Radiography using non-light waves
 | 
| 
2H014
 | 
Cinecamera
 | 
| 
2H015
 | 
Details common to projectors
 | 
| 
2H016
 | 
SILVER SALT PHOTOGRAPHY OR PROCESSING SOLUTION THEREFOR
 | 
| 
2H017
 | 
Film piece handling
 | 
| 
2H018
 | 
Viewfinders
 | 
| 
2H019
 | 
Photographic shooting methods and apparatuses
 | 
| 
2H020
 | 
DETAILS OF CAMERAS INCLUDING FILM MECHANISMS
 | 
| 
2H021
 | 
Overhead projectors and projection screens
 | 
| 
2H022
 | 
Contact printing devices
 | 
| 
2H023
 | 
SILVER SALT PHOTOSENSITIVE MATERIALS
 | 
| 
2H024
 | 
Film packages
 | 
| 
2H025
 | 
PHOTORESIST MATERIALS
 | 
| 
2H026
 | 
HEAT SENSITIVE COLOUR FORMING RECORDING
 | 
| 
2H027
 | 
CONTROL OR SECURITY IN ELECTROPHOTOGRAPHY
 | 
| 
2H028
 | 
Counters in electrophotography and two-sided copying
 | 
| 
2H029
 | 
Electrophotography using other than Carlson's method
 | 
| 
2H030
 | 
Color electrophotography
 | 
| 
2H031
 | 
Magnetic brush developing in electrophotography
 | 
| 
2H033
 | 
FIXING FOR ELECTROPHOTOGRAPHY
 | 
| 
2H035
 | 
DISCHARGING, PHOTOSENSITIVE MATERIAL SHAPE IN ELECTROPHOTOGRAPHY
 | 
| 
2H036
 | 
Mechanical coupling of light guides
 | 
| 
2H037
 | 
Optical coupling of light guides
 | 
| 
2H038
 | 
LIGHT GUIDES IN GENERAL AND APPLICATIONS THEREFOR
 | 
| 
2H039
 | 
Telescopes
 | 
| 
2H040
 | 
INSTRUMENTS FOR VIEWING THE INSIDE OF HOLLOW BODIES
 | 
| 
2H041
 | 
Mechanical light control, optical switches
 | 
| 
2H042
 | 
OPTICAL ELEMENTS OTHER THAN LENSES
 | 
| 
2H043
 | 
MOUNTING AND ADJUSTING OF OPTICAL ELEMENTS
 | 
| 
2H044
 | 
LENS BARRELS
 | 
| 
2H045
 | 
MECHANICAL OPTICAL SCANNING SYSTEMS
 | 
| 
2H046
 | 
OPTICAL FIBRE BUNDLES
 | 
| 
2H047
 | 
Optical integrated circuits
 | 
| 
2H048
 | 
Optical filters
 | 
| 
2H049
 | 
Diffraction gratings, polarizing elements, and holographic optical elements
 | 
| 
2H050
 | 
Optical fiber cores
 | 
| 
2H051
 | 
AUTOMATIC FOCUS ADJUSTMENT
 | 
| 
2H052
 | 
MICROSCOOPES, CONDENSER
 | 
| 
2H053
 | 
STROBOSCOPE APPARATUSES
 | 
| 
2H054
 | 
Cameras in general
 | 
| 
2H055
 | 
Slide changers
 | 
| 
2H056
 | 
Special-shape cameras
 | 
| 
2H057
 | 
Talkies
 | 
| 
2H058
 | 
(Not Translated)
 | 
| 
2H059
 | 
STEREOSCOPIC AND PANORAMIC PHOTOGRAPHY
 | 
| 
2H060
 | 
High-speed photography and other special technologies
 | 
| 
2H061
 | 
Testing photography devices
 | 
| 
2H062
 | 
Electrophotography transfer materials
 | 
| 
2H063
 | 
Electrophotography protection layers
 | 
| 
2H064
 | 
Electrophotography fixing agents
 | 
| 
2H065
 | 
Electrophotography multicopy
 | 
| 
2H066
 | 
Electrophotography warming
 | 
| 
2H067
 | 
Electrophotography electrostatic image transfer
 | 
| 
2H068
 | 
PHOTORECEPTORS IN ELECTROPHOTOGRAPHY
 | 
| 
2H069
 | 
Liquid developers in electrophotography
 | 
| 
2H070
 | 
Electrographic processes in general and platemaking by electrophotography
 | 
| 
2H071
 | 
Electrographic apparatuses in general and cases and elements thereof
 | 
| 
2H072
 | 
PAPER FEEDING FOR ELECTROPHOTOGRAPHY
 | 
| 
2H073
 | 
DEVELOPING FOR ELECTROPHOTOGRAPHY IN GENERAL; DEVELOPING BIAS
 | 
| 
2H074
 | 
WET DEVELOPING IN ELECTROPHOTOGRAPHY
 | 
| 
2H075
 | 
Electrophotography magnetic photography
 | 
| 
2H076
 | 
EXPOSURE OR ORIGINAL FEEDING IN ELECTROPHOTOGRAPHY
 | 
| 
2H077
 | 
DRY DEVELOPMENT IN ELECTROPHOTOGRAPHY
 | 
| 
2H078
 | 
COMBINATION OF MORE THAN ONE STEP IN ELECTROPHOTOGRAPHY
 | 
| 
2H079
 | 
MODULATION OF LIGHT
 | 
| 
2H080
 | 
Diaphragms for cameras
 | 
| 
2H081
 | 
Shutters for cameras
 | 
| 
2H082
 | 
Shutter-related mechanisms
 | 
| 
2H083
 | 
BLOCKING LIGHT FOR CAMERAS
 | 
| 
2H084
 | 
MANUFACTURE OR REPRODUCTION OF PRINTING FORMES
 | 
| 
2H085
 | 
Color printing
 | 
| 
2H086
 | 
Copying or marking
 | 
| 
2H087
 | 
Lenses
 | 
| 
2H088
 | 
LIQUID CRYSTAL 1 (APPLICATIONS AND PRINCIPLES)
 | 
| 
2H089
 | 
Liquid Crystal 2 (General structure, spacers, filling holes, and closing members)
 | 
| 
2H090
 | 
Liquid Crystal 3 (Substrates, insulating layers, and alignment members)
 | 
| 
2H091
 | 
LIQUID CRYSTAL 4 (COMBINATION WITH OPTICAL MEMBERS)
 | 
| 
2H092
 | 
LIQUID CRYSTAL 5 (ELECTRODES AND ACTIVE MATRIXES)
 | 
| 
2H093
 | 
LIQUID CRYSTAL 6 (DRIVE)
 | 
| 
2H094
 | 
Diffusion transfer
 | 
| 
2H095
 | 
PREPARATION OF ORIGINALS OR MASKS IN PHOTOMECHANICAL PROCESSES
 | 
| 
2H096
 | 
TREATMENT OF PHOTOSENSITIVE RESINS OR PHOTORESISTS
 | 
| 
2H097
 | 
EXPOSURE AND POSITIONING OF PHOTOSENSITIVE MATERIALS COMPRISING PHOTORESISTS
 | 
| 
2H098
 | 
Photographic processing devices using wet methods
 | 
| 
2H099
 | 
Other optical system, apparatus, interferance of the light and control of the color
 | 
| 
2H100
 | 
CAMERA BODIES AND CAMERA DETAILS OR ACCESSORIES
 | 
| 
2H101
 | 
STRUCTURE AND MECHANISM OF CAMERAS
 | 
| 
2H102
 | 
INDICATION IN CAMERAS, AND COUNTING OF EXPOSURES
 | 
| 
2H103
 | 
Camera data copying or recording
 | 
| 
2H104
 | 
Cameras adapted for combination with other photographic or optical apparatuses
 | 
| 
2H105
 | 
ACCESSORIES OF CAMERAS
 | 
| 
2H106
 | 
Projection-type copiers in general
 | 
| 
2H107
 | 
VARIABLE MAGNIFICATION IN PROJECTION-TYPE COPYING MACHINES
 | 
| 
2H108
 | 
Optical systems of projection type copiers
 | 
| 
2H109
 | 
LIGHT SOURCES AND DETAILS OF PROJECTION-PRINTING DEVICES
 | 
| 
2H110
 | 
Control of exposure in printing and copying
 | 
| 
2H111
 | 
THERMAL TRANSFER OR THERMAL RECORDING IN GENERAL
 | 
| 
2H112
 | 
Photographic developing apparatuses
 | 
| 
2H113
 | 
PRINTING METHODS
 | 
| 
2H114
 | 
PRINTING PLATES AND MATERIALS THEREFOR
 | 
| 
2H115
 | 
Typesetting
 | 
| 
2H116
 | 
Marking and others
 | 
| 
2H117
 | 
Color separation and correction and screen methods in phototype processes
 | 
| 
2H118
 | 
Gas processing devices
 | 
| 
2H123
 | 
NON-SILVER SALT PHOTOSENSITIVE MATERIALS AND NON-SILVER SALT PHOTOGRAPHY
 | 
| 
2H125
 | 
MATERIALS FOR PHOTOLITHOGRAPHY
 | 
| 
2H134
 | 
Cleaning in electrography, etc.
 | 
| 
2H137
 | 
OPTICAL COUPLINGS OF LIGHT GUIDES
 | 
| 
2H141
 | 
MECHANICAL LIGHT CONTROL OR OPTICAL SWITCHES
 | 
| 
2H147
 | 
OPTICAL INTEGRATED CIRCUITS
 | 
| 
2H148
 | 
OPTICAL FILTERS
 | 
| 
2H149
 | 
POLARISING ELEMENTS
 | 
| 
2H150
 | 
OPTICAL FIBRES OR COATED OPTICAL FIBRES
 | 
| 
2H151
 | 
AUTOMATIC FOCUS ADJUSTMENT
 | 
| 
2H170
 | 
Electrophotograph plate-making
 | 
| 
2H171
 | 
General electrophotography. Overall configuration and components
 | 
| 
2H186
 | 
INK JET RECORDING METHODS AND RECORDING MEDIA THEREOF
 | 
| 
2H189
 | 
LIQUID CRYSTALS 2 (STRUCTURES IN GENERAL, SPACERS, INLETS OR SEALING MATERIALS)
 | 
| 
2H190
 | 
LIQUID CRYSTALS 3-1 (SUBSTRATES AND INSULATING FILMS)
 | 
| 
2H191
 | 
LIQUID CRYSTAL 4 (COMBINATION WITH OPTICAL MEMBERS)
 | 
| 
2H192
 | 
LIQUID CRYSTALS 5-2 (SWITCHING ELEMENTS)
 | 
| 
2H193
 | 
LIQUID CRYSTAL 6 (DRIVE)
 | 
| 
2H195
 | 
PREPARING PLATES AND MASK IN PHOTOMECHANICAL PROCESS
 | 
| 
2H196
 | 
PHOTOSENSITIVE POLYMER AND PHOTORESIST PROCESSING
 | 
| 
2H197
 | 
EXPOSURE AND POSITIONING AGAINST PHOTORESIST PHOTOSENSITIVE MATERIALS
 | 
| 
2H199
 | 
OTHER OPTICAL SYSTEMS OR APPARATUS; INTERFERENCE OR CONTROL OF THE COLOUR
 | 
| 
2H200
 | 
Electrostatic charge, transfer and separation in electrography
 | 
| 
2H201
 | 
STRUCTURES FOR PROVIDING TENSILE STRENGTH AND EXTERNAL PROTECTION FOR FIBERS
 | 
| 
2H225
 | 
MATERIALS FOR PHOTOLITHOGRAPHY
 | 
| 
2H249
 | 
DIFFRACTING GRATINGS OR HOLOGRAM OPTICAL ELEMENTS
 | 
| 
2H250
 | 
OPTICAL FIBERS, OPTICAL FIBER CORES, AND OPTICAL FIBER BUNDLES
 | 
| 
2H270
 | 
CONTROL OR SECURITY FOR ELECTROPHOTOGRAPHY
 | 
| 
2H286
 | 
DUPLICATION OR MARKING
 | 
| 
2H290
 | 
LIQUID CRYSTAL3-2 (ALIGNMENT MEMBERS)
 | 
| 
2H291
 | 
LIQUID CRYSTAL 4-1 (COMBINATION WITH OPTICAL MEMBERS)
 | 
| 
2H300
 | 
Color electrophotography
 | 
| 
2H391
 | 
LIQUID CRYSTAL 4-2 (COMBINATION WITH LIGHTING DEVICE)
 | 
| 
2H500
 | 
DEVELOPING AGENTS FOR ELECTROPHOTOGRAPHY
 |