| ReturnTo Theme-Group-Choice | Onelevelup |
| 3B100 | Slide fasteners, snap fasteners, and hook fasteners | |
| A44B13/00 -18/00 | ||
| A44B13/00;13/02 | AA | AA00 USES FOR HOOK FASTENERS |
AA01 | AA02 | AA03 | |||||||
| . Clothing | . . Trousers | . . Skirts | ||||||||||
| AB | AB00 STRUCTURE OF HOOK FASTENERS |
AB01 | AB02 | AB03 | AB04 | AB05 | AB06 | |||||
| . Hooks and eyes | . . Hooks | . . . Hooks with detachment stops | . . Eyes | . . . Eyes with detachment stops | . Interlocking hooks | |||||||
| AC | AC00 MANUFACTURING AND MATERIALS OF HOOK FASTENERS |
AC01 | AC02 | AC03 | AC04 | AC05 | ||||||
| . Manufacturing apparatuses | . Wire | . Metal sheets | . Plastics | . Other materials | ||||||||
| AD | AD00 MOUNTING OF HOOK FASTENERS |
AD01 | AD02 | AD03 | AD04 | |||||||
| . Pressing | . Mounting apparatuses | . Mounting machines | . Sewing | |||||||||
| AE | AE00 FUNCTION OS HOOK FASTENERS |
AE01 | AE02 | |||||||||
| . Adjustable types | . Nondetachable types | |||||||||||
| A44B15/00 | BA | BA00 KEY-RING STRUCTURE |
BA01 | BA02 | BA03 | BA04 | BA05 | BA06 | ||||
| . Ring materials | . . Wires | . . Braided wires | . . Chains | . . Springs | . Multiple rings | |||||||
| BB | BB00 OPENING AND CLOSING OF KEY-RINGS |
BB01 | BB02 | BB03 | BB04 | BB05 | ||||||
| . Variants wherein one part of the key-ring is provided with movable elements | . . Movable sliding elements | . . Movable rotating elements | . . Screw-fastened movable elements | . Use of ring elasticity in overall structure | ||||||||
| A44B17/00 | CA | CA00 MANUFACTURING OF SNAP FASTENERS |
CA01 | CA02 | ||||||||
| . Manufacturing methods | . Manufacturing apparatuses | |||||||||||
| CB | CB00 MOUNTING OF SNAP FASTENERS |
CB01 | CB02 | CB03 | CB04 | |||||||
| . Pressing | . Mounting apparatuses | . Mounting of plastic snaps | . Prevention of scratching | |||||||||
| CC | CC00 MATERIALS FOR SNAP FASTENERS |
CC01 | CC02 | CC03 | CC04 | CC05 | ||||||
| . Plastics | . Metals | . . Sheet metals | . Magnetic materials | . Other materials | ||||||||
| CD | CD00 USES OF SNAP FASTENERS |
CD01 | CD02 | CD03 | CD04 | |||||||
| . Decoration | . Prevention of rotation | . Continuous snap fasteners | . Prevention or limitation of article detachment | |||||||||
| A44B18/00 | DA | DA00 STRUCTURE OF SURFACE FASTENERS |
DA01 | DA02 | DA03 | DA04 | DA05 | DA06 | DA07 | |||
| . Engagement with pile | . . Hook types | . . . Manufacturing of hooks | . . Mushroom-like hook members | . . . Manufacturing of mushroom-like hook members | . Engagement without using pile | . Combinations of surface fasteners | ||||||
| DB | DB00 USES OF SURFACE FASTENERS |
DB01 | DB02 | DB03 | DB04 | DB05 | DB06 | DB07 | DB08 | |||
| . Clothing | . . Diapers | . . Gloves | . . Bands | . Household uses | . . Article retention | . Sports | . Automobiles |