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Electronic timepiece
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Patent number 4,090,350
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Issue date May 23, 1978
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Citizen Watch Co., Limited
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Yasushi Nomura
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G04 - HOROLOGY
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Electronic timepiece
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Patent number 4,067,187
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Issue date Jan 10, 1978
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Citizen Watch Co., Ltd.
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Fukuo Sekiya
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G04 - HOROLOGY
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Silver peroxide-zinc battery
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Patent number 4,041,219
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Issue date Aug 9, 1977
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Citizen Watch Company Limited
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Hajime Nishimura
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H01 - BASIC ELECTRIC ELEMENTS
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Battery construction
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Patent number 4,025,702
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Issue date May 24, 1977
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Citizen Watch Co., Ltd.
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Hajime Nishimura
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H01 - BASIC ELECTRIC ELEMENTS
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