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Mechanical manipulator
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Patent number 4,756,655
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Issue date Jul 12, 1988
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John W. Jameson
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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Manipulator
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Patent number 4,065,001
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Issue date Dec 27, 1977
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Shiroyama Kogyo Co., Ltd.
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Makoto Ohnaka
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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3128887
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Patent number 3,128,887
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Issue date Apr 14, 1964
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
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2815697
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Patent number 2,815,697
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Issue date Dec 10, 1957
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS