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Image forming apparatus
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Patent number 4,937,664
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Issue date Jun 26, 1990
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Canon Kabushiki Kaisha
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Kazuyoshi Chiku
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Multiimage forming apparatus
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Patent number 4,903,067
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Issue date Feb 20, 1990
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Canon Kabushiki Kaisha
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Yasushi Murayama
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Image forming apparatus
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Patent number 4,873,541
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Issue date Oct 10, 1989
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Canon Kabushiki Kaisha
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Yoshihiko Hirose
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Electrophotographic apparatus
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Patent number 4,847,642
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Issue date Jul 11, 1989
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Canon Kabushiki Kaisha
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Yasushi Murayama
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G06 - COMPUTING CALCULATING COUNTING