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Yasuaki Nakayama
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Higashi-kurume, JA
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Patents Grants
last 30 patents
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Patent Grant
Rotor assembly for electro-mechanical transducer of electronic time...
Patent number
4,095,129
Issue date
Jun 13, 1978
Citizen Watch Company Limited
Kunio Tanai
H02 - GENERATION CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
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Patent Grant
Electronic timepiece
Patent number
3,998,044
Issue date
Dec 21, 1976
Citizen Watch Co., Ltd.
Masamichi Yamauchi
G04 - HOROLOGY
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Patent Grant
Wristwatch with a time display control switch means
Patent number
3,935,701
Issue date
Feb 3, 1976
Citizen Watch Co., Ltd.
Masamichi Yamauchi
G04 - HOROLOGY