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Film frame number display for camera
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Patent number 4,312,581
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Issue date Jan 26, 1982
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Ricoh Company, Ltd.
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Fumihiro Miyagawa
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Camera
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Patent number 4,264,172
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Issue date Apr 28, 1981
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Ricoh Co., Ltd.
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Fumihiro Miyagawa
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Camera with date entry
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Patent number 4,143,956
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Issue date Mar 13, 1979
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Ricoh Company, Ltd.
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Fumihiro Miyagawa
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY