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On this page, you can select 「MainGroup」 or 「Facet」 in G04C. |
HB:Handbook | ||||
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Select the desired 「MainGroup」 or 「facet」 etc. |
CC:Concordance | ||||
| Electric winding of mechanical clocks; Independent electric clocks or watches | |||||
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Winding mechanical clocks electrically (winding mechanically G04B 3/00) | HB | CC | 2F101 | |
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Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means (clocks driven by synchronous motors G04C 15/00) | HB | CC | 2F101 | |
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Electric or magnetic means for converting oscillatory to rotary motion in time-pieces, i.e. electric or magnetic escapements (regulators G04C 3/00) [3] | HB | CC | 2F101 | |
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Electrically-actuated devices for setting the time-indicating means (of slave clocks G04C 13/03; radio-controlled time-pieces G04R) [3] | HB | CC | 2F101 | |
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Arrangements of electric power supplies in time-pieces [3] | HB | CC | 2F101 | |
| Electric clock installations; Primary-and-secondary clock systems; Synchronous-motor clocks | |||||
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Synchronisation of independently-driven clocks (radio-controlled time-pieces G04R) | HB | CC | 2F101 | |
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Driving mechanisms for clocks by master clocks | HB | CC | 2F101 | |
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Clocks driven by synchronous motors | HB | CC | 2F101 | |
| Indicating the time or producing time signals electrically | |||||
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Indicating the time optically by electric means (G04C 19/00 takes precedence; liquid crystal materials C09K 19/00; by mechanical means G04B 19/00, G04B 19/20) [3] | HB | CC | 2F101 | |
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Producing optical time signals at prefixed times by electric means | HB | CC | 2F101 | |
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Producing acoustic time signals by electrical means | HB | CC | 2F101 | |
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Clocks with attached or built-in means operating any device at preselected times or after preselected time-intervals (if restricted to producing acoustic time signals by electrical means G04C 21/00; mechanical alarm clocks G04B 23/02; apparatus which can be set and started to measure-off predetermined intervals G04F 3/06; time or time-programme switches which automatically terminate their operation after the programme is completed H01H 43/00) | HB | CC | 2F101 | |
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Subject matter not provided for in other groups of this subclass [8] | HB | CC | 2F101 | |