DIFF Subgroup
G04C 3/14 incorporating a stepping motor (G04C3/02 - G04C3/12 take precedence )
Introduced: January 1980
Title
Titles differ between systems:
IPC: incorporating a stepping motor
CPC: incorporating a stepping motor (G04C3/02 - G04C3/12 take precedence )
Full Title
Full titles differ between systems:
IPC:
Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means > incorporating a stepping motor
CPC:
Electromechanical clocks or watches independent of other time-pieces and in which the movement is maintained by electric means (clocks driven by synchronous motors G04C15/00) > incorporating a stepping motor (G04C3/02 - G04C3/12 take precedence )
Of 2 combined children, 0 exist in both systems.
2 codes are CPC-only extensions.
Child Classifications
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