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Universal thresholder/discriminator
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Patent number 4,554,593
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Issue date Nov 19, 1985
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International Business Machines Corporation
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Sidney J. Fox
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G06 - COMPUTING CALCULATING COUNTING
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Single array ink jet printer
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Patent number 4,069,486
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Issue date Jan 17, 1978
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International Business Machines Corporation
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Sidney Jared Fox
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS
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Multiple array printer
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Patent number 4,063,254
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Issue date Dec 13, 1977
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International Business Machines Corporation
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Sidney Jared Fox
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G06 - COMPUTING CALCULATING COUNTING
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Ink jet copier
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Patent number 4,051,538
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Issue date Sep 27, 1977
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International Business Machines Corporation
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Sidney Jared Fox
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B41 - PRINTING LINING MACHINES TYPEWRITERS STAMPS