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Leon Hatot SA France

Leon Hatot

Active Patents

0

Total Holdings

4

Patent Holdings

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Patent No.	Title	Status	Filing Date	Grant Date	Claims	Actions
US2986683A	Driving balance-wheels more particularly applicable to timi…	Expired / Lapsed	1957-07-23	1961-05-30	0	Details
FR1149195A	Improvements to small machines and magnetoelectric instrume…	Expired / Lapsed	1956-02-20	1957-12-20	0	Details
FR1092411A	Improvements to electromagnetic time devices	Expired / Lapsed	1953-10-21	1955-04-21	0	Details
FR986536A	Electric clocks and advanced time systems	Expired / Lapsed	1949-03-11	1951-08-01	0	Details