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Direct drive motor system
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Issue date Jun 27, 1989
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Yokogawa Electric Corporation
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Yutaka Ono
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Servo system
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Patent number 4,565,950
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Issue date Jan 21, 1986
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Ricoh Company, Ltd.
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Mitsutoyo Kikuno
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G05 - CONTROLLING REGULATING
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Speed control apparatus
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Patent number 4,542,327
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Issue date Sep 17, 1985
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Fanuc Ltd.
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Tetsuro Sakano
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G05 - CONTROLLING REGULATING
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Servo control apparatus
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Patent number 4,511,830
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Issue date Apr 16, 1985
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Canon Kabushiki Kaisha
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Yasuaki Yamada
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G05 - CONTROLLING REGULATING
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Servo control apparatus
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Patent number 4,315,200
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Issue date Feb 9, 1982
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Canon Kabushiki Kaisha
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Yasuaki Yamada
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G05 - CONTROLLING REGULATING
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Automatic polishing apparatus
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Patent number 4,268,999
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Issue date May 26, 1981
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Hitachi, Ltd.
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Koichi Noto
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Hydraulic drill unit
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Patent number 4,157,231
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Issue date Jun 5, 1979
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The United States of America as represented by the Secretary of the Air Force
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Joseph L. Phillips
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G05 - CONTROLLING REGULATING
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Issue date Mar 5, 1968
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G05 - CONTROLLING REGULATING