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Identification methods
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Patent number 6,119,940
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Issue date Sep 19, 2000
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Unisys Corporation
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Philip D. Klug
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G06 - COMPUTING CALCULATING COUNTING
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Gray-shade pass card reader
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Patent number 6,112,991
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Issue date Sep 5, 2000
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Unisys Corporation
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Philip D. Klug
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G06 - COMPUTING CALCULATING COUNTING
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Coded card reader systems
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Patent number 5,321,244
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Issue date Jun 14, 1994
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Newtronics, S.A.
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Conrad R. C. Maloney
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G06 - COMPUTING CALCULATING COUNTING
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Encoding magnetic cards
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Patent number 4,880,963
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Issue date Nov 14, 1989
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Toshihiko Yamashita
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G06 - COMPUTING CALCULATING COUNTING
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Bar code reader
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Patent number 4,743,744
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Issue date May 10, 1988
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Alps Electric Co., Ltd.
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Koji Nakase
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G06 - COMPUTING CALCULATING COUNTING
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Binary coding system
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Patent number 4,707,612
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Issue date Nov 17, 1987
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Blue Bell, Inc.
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Robert J. Martin
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G06 - COMPUTING CALCULATING COUNTING
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Method of reading bar code
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Patent number 4,638,170
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Issue date Jan 20, 1987
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Fuji Photo Film Co., Ltd.
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Kazufumi Kubota
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G06 - COMPUTING CALCULATING COUNTING
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Debit card
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Patent number 4,598,196
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Issue date Jul 1, 1986
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Drexler Technology Corporation
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Gerald A. Pierce
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G06 - COMPUTING CALCULATING COUNTING
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