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Villers-le-Lac, FR
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Patents Grants
last 30 patents
Information
Patent Grant
Electromechanical escapement device and timepiece part utilizing su...
Patent number
7,891,862
Issue date
Feb 22, 2011
Isa France S.A.
Xuan Mai Tu
G04 - HOROLOGY
Information
Patent Grant
Device indicating the state of batteries designed to equip a watch
Patent number
6,958,954
Issue date
Oct 25, 2005
ISA France S.A.
Urs Haeni
G04 - HOROLOGY
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Patent Grant
Horological piece comprising a battery end of life indicator device
Patent number
5,446,702
Issue date
Aug 29, 1995
ISA France S.A.
Gabriel Mossuz
G04 - HOROLOGY
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