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PCE
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DIFF Subgroup
G04F 7/10

Means used apart from the time-piece for starting or stopping same

Introduced: September 1968

Full Title

Full titles differ between systems:

IPC:

Apparatus for measuring unknown time intervals by non-electric means > Means used apart from the time-piece for starting or stopping same

CPC:

Apparatus for measuring unknown time intervals by non-electric means (using fluidic means G04F13/06) > Means used apart from the time-piece for starting or stopping same

No child classifications to compare. This is a leaf node in both IPC and CPC.