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Rangefinding system
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Patent number 4,251,144
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Issue date Feb 17, 1981
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Minolta Camera Kabushiki Kaisha
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Motonobu Matsuda
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G02 - OPTICS
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Photoelectric rangefinder
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Patent number 4,209,241
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Issue date Jun 24, 1980
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Minolta Camera Kabushiki Kaisha
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Yasuhiro Nanba
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G02 - OPTICS
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Data photographic device for camera
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Patent number 4,193,676
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Issue date Mar 18, 1980
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Minolta Camera Kabushiki Kaisha
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Hiroshi Ueda
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Apparatus for dating camera film
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Patent number 4,167,315
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Issue date Sep 11, 1979
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Minolta Camera Kabushiki Kaisha
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Yasuhiro Nanba
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY