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Touch panel unit
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Patent number 7,911,455
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Issue date Mar 22, 2011
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Nissha Printing Co., Ltd.
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Kazuhiro Nishikawa
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G06 - COMPUTING CALCULATING COUNTING
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Membrane-type touch panel
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Patent number 4,864,084
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Issue date Sep 5, 1989
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C.A.M. Graphics, Co., Inc.
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Emanuel Cardinale
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H01 - BASIC ELECTRIC ELEMENTS
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Low force membrane switch
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Patent number 4,818,827
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Issue date Apr 4, 1989
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AMP Incorporated
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Ralph G. Ipcinski
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G09 - EDUCATION CRYPTOGRAPHY DISPLAY ADVERTISING SEALS
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Sensor switch
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Patent number 4,525,606
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Issue date Jun 25, 1985
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Ryoichi Sado
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H01 - BASIC ELECTRIC ELEMENTS
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