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IC card reader and writer
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Patent number D423471
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Issue date Apr 25, 2000
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Hitachi, Ltd.
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Takeshi Minemoto
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D14 - Recording, communication, or information retrieval equipment
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Portable card reader/writer
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Patent number 5,929,427
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Issue date Jul 27, 1999
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Hitachi, Ltd.
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Kaoru Harada
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G06 - COMPUTING CALCULATING COUNTING
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Electronic wallet
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Patent number D409229
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Issue date May 4, 1999
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Hitachi, Ltd.
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Takashi Matsubara
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D18 - Printing and office machinery
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Electronic wallet
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Patent number D408438
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Issue date Apr 20, 1999
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Hitachi, Ltd.
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Takashi Matsubara
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D18 - Printing and office machinery
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