DIFF Subgroup
G04B 19/02 Back-gearing arrangements between gear train and hands
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Indicating the time by visual means > Back-gearing arrangements between gear train and hands
CPC:
Indicating the time by visual means ( by electric lamps G04C17/02; display arrangements in general G09F) > Back-gearing arrangements between gear train and hands
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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