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Industrial robot
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Patent number D334581
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Issue date Apr 6, 1993
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Hitachi, Ltd.
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Akira Yoshikawa
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D15 - Machines not elsewhere specified
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Wrist device of robot
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Patent number 4,787,262
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Issue date Nov 29, 1988
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Hitachi, Ltd.
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Fusaaki Kozawa
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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Industrial robot
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Patent number 4,610,598
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Issue date Sep 9, 1986
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Hitachi, Ltd.
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Toyohide Hamada
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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Industrial robot
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Patent number D280203
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Issue date Aug 20, 1985
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Hitachi, Ltd.
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Masato Shibayama
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D15 - Machines not elsewhere specified