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Optical device
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Patent number 7,133,216
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Issue date Nov 7, 2006
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Canon Kabushiki Kaisha
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Shigeru Takeshita
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G02 - OPTICS
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Optical device
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Patent number 6,934,096
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Issue date Aug 23, 2005
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Canon Kabushiki Kaisha
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Shigeru Takeshita
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G02 - OPTICS
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Optical apparatus
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Patent number 6,339,681
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Issue date Jan 15, 2002
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Canon Kabushiki Kaisha
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Shigeru Takeshita
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G02 - OPTICS
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Optical apparatus
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Patent number 6,278,844
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Issue date Aug 21, 2001
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Canon Kabushiki Kaisha
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Shigeru Takeshita
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G02 - OPTICS