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Electronic watch
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Patent number RE40370
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Issue date Jun 10, 2008
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Citizens Holdings Co., Ltd.
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Koichi Sato
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368 - Horology: time measuring systems or devices
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Electronic watch
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Patent number 5,933,392
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Issue date Aug 3, 1999
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Citizen Watch Co., Ltd.
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Koichi Sato
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G04 - HOROLOGY
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Electronic timepiece
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Patent number 4,440,502
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Issue date Apr 3, 1984
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Citizen Watch Co., Ltd.
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Fumio Kanno
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G04 - HOROLOGY
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Electronic timepiece
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Patent number 4,340,946
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Issue date Jul 20, 1982
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Citizen Watch Company Limited
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Fumio Kanno
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G04 - HOROLOGY
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