FI-MainGroup/Facet-Choice

Electric winding of mechanical clocks; Independent electric clocks or watches
  • G04C1/00
  • Electric winding of mechanical clocks; Independent electric clocks or watches[2006.01] HB CC 2F101
  • G04C3/00
  • 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
  • G04C5/00
  • 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
  • G04C9/00
  • Electrically-actuated devices for setting the time-indicating means (of secondary clocks G04C0013030000)[2006.01] HB CC 2F101
  • G04C10/00
  • Arrangements of electric power supplies in time-pieces [3] HB CC 2F101
    Electric clock installations; Primary-and-secondary clock systems; Synchronous-motor clocks
  • G04C11/00
  • Electric clock installations; Primary-and-secondary clock systems; Synchronous-motor clocks[2006.01] HB CC 2F101
  • G04C13/00
  • Driving mechanisms for clocks by master clocks HB CC 2F101
  • G04C15/00
  • Clocks driven by synchronous motors HB CC 2F101
    Indicating the time or producing time signals electrically
  • G04C17/00
  • Indicating the time or producing time signals electrically[2006.01] HB CC 2F101
  • G04C19/00
  • Producing optical time signals at prefixed times by electric means HB CC 2F101
  • G04C21/00
  • Producing acoustic time signals by electrical means HB CC 2F101

  • G04C23/00
  • 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 G04C0021000000) HB CC 2F101
  • G04C99/00
  • Subject matter not provided for in other groups of this subclass [8] HB CC 2F101
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