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Photometric apparatus for camera
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Patent number 6,574,439
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Issue date Jun 3, 2003
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Olympus Optical Co., Ltd.
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Seiji Shimizu
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Zoom optical system
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Patent number 6,411,443
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Issue date Jun 25, 2002
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Olympus Optical Co., Ltd.
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Shigeru Kato
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G02 - OPTICS
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Photometric apparatus for camera
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Patent number 6,072,959
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Issue date Jun 6, 2000
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Olympus Optical Co., Ltd.
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Seiji Shimizu
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Zoom optical system
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Patent number 6,014,265
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Issue date Jan 11, 2000
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Olympus Optical Co., Ltd.
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Shigeru Kato
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G02 - OPTICS
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Photographic lens system
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Patent number 5,862,000
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Issue date Jan 19, 1999
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Olympus Optical Co., Ltd.
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Toshio Takahashi
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G02 - OPTICS
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Taking lens system
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Patent number 5,636,067
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Issue date Jun 3, 1997
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Olympus Optical Co., Ltd.
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Seiji Shimizu
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G02 - OPTICS
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Rear converter lens
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Patent number 5,349,474
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Issue date Sep 20, 1994
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Olympus Optical Co., Ltd.
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Seiji Shimizu
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G02 - OPTICS