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Copying method and apparatus
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Patent number 4,990,967
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Issue date Feb 5, 1991
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International Business Machines Corporation
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Donald F. Colglazier
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Data log retrieval system
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Patent number 4,322,813
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Issue date Mar 30, 1982
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International Business Machines Corporation
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Guy J. Howard
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G06 - COMPUTING CALCULATING COUNTING
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Collator error recovery
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Patent number 4,317,203
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Issue date Feb 23, 1982
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International Business Machines Corporation
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Anthony J. Botte
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B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
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Automatic copy recovery
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Patent number 4,163,897
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Issue date Aug 7, 1979
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International Business Machines Corporation
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James H. Hubbard
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Automatic copier mode controls
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Patent number 4,090,787
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Issue date May 23, 1978
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International Business Machines Corporation
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James Henry Hubbard
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY
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Toner concentration control apparatus
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Patent number 4,032,227
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Issue date Jun 28, 1977
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International Business Machines Corporation
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James H. Hubbard
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G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY