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Focal length switching type camera
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Patent number 4,839,677
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Issue date Jun 13, 1989
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Konishiroku Photo Industry Co., Ltd.
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Yasushi Hoshino
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Focal length switching type camera
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Patent number 4,740,807
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Issue date Apr 26, 1988
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Konishiroku Photo Industry Co., Ltd.
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Yasushi Hoshino
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Focal length switching type camera
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Patent number 4,717,932
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Issue date Jan 5, 1988
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Konishiroku Photo Industry Co., Ltd.
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Yasushi Hoshino
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY