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Publication of CH35120ApublicationCriticalpatent/CH35120A/fr
G04F7/00—Apparatus for measuring unknown time intervals by non-electric means
G04F7/04—Apparatus for measuring unknown time intervals by non-electric means using a mechanical oscillator
G04F7/08—Watches or clocks with stop devices, e.g. chronograph
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General Physics & Mathematics
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CH35120A1905-08-151905-08-15Dispositif pour produire le saut instantané de l'aiguille marquant les minutes dans les chronographes compteurs
CH35120A
(fr)