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Zoom lens
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Patent number 6,404,562
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Issue date Jun 11, 2002
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Konica Corporation
-
Kohei Ota
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G02 - OPTICS
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Copying lens
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Patent number 4,385,809
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Issue date May 31, 1983
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Konishiroku Photo Industry Co., Ltd.
-
Minoru Yokota
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G02 - OPTICS
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Copying lens
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Patent number 4,173,396
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Issue date Nov 6, 1979
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Konishiroku Photo Industry Co., Ltd.
-
Minoru Yokota
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G02 - OPTICS