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G04F3/00—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals with driving mechanisms, e.g. dosimeters with clockwork
G04F3/06—Apparatus which can be set and started to measure-off predetermined or adjustably-fixed time intervals with driving mechanisms, e.g. dosimeters with clockwork with electric driving mechanisms
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FR1181122D1957-08-131957-08-13Perfectionnements aux mécanismes électriques de minuteries et analogues
ExpiredFR1181122A
(fr)