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Switching apparatus for telephone set
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Patent number D410654
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Issue date Jun 8, 1999
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Nitsuko Corporation
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Eiichi Taniguchi
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D14 - Recording, communication, or information retrieval equipment
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Telephone set
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Patent number D339583
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Issue date Sep 21, 1993
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Nitsuko Corporation
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Eiichi Taniguchi
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D14 - Recording, communication, or information retrieval equipment
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Telephone set
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Patent number D337585
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Issue date Jul 20, 1993
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Nitsuko Corporation
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Eiichi Taniguchi
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D14 - Recording, communication, or information retrieval equipment
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Telephone set
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Patent number D332263
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Issue date Jan 5, 1993
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Nitsuko Corporation
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Eiichi Taniguchi
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D14 - Recording, communication, or information retrieval equipment
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Telephone set
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Patent number D303797
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Issue date Oct 3, 1989
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Nitsuko Corporation
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Eiichi Taniguchi
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D14 - Recording, communication, or information retrieval equipment