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Fine positioning device
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Patent number 4,888,878
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Issue date Dec 26, 1989
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Hitachi Construction Machinery Co., Ltd.
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Kiyoshi Nagasawa
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Profile working machine
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Patent number 4,772,161
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Issue date Sep 20, 1988
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Nagao; Takaaki
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Takaaki Nagao
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Fine positioning device
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Patent number 4,686,440
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Issue date Aug 11, 1987
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Hatamura; Yotaro
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Yotaro Hatamura
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B23 - MACHINE TOOLS METAL-WORKING NOT OTHERWISE PROVIDED FOR
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Multi-axis load sensor
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Patent number 4,674,339
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Issue date Jun 23, 1987
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Hatamura; Yotaro
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Yotaro Hatamura
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G01 - MEASURING TESTING
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Profile working machine
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Patent number 4,666,352
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Issue date May 19, 1987
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Nagao; Takaaki
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Takaaki Nagao
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G05 - CONTROLLING REGULATING
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Vibration generating apparatus
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Patent number 4,653,594
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Issue date Mar 31, 1987
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Nippon Telegraph & Telephone Public Corporation
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Hiroshi Yamamoto
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B06 - GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
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Pipe laying apparatus
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Patent number 4,571,122
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Issue date Feb 18, 1986
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Nippon Telegraph and Telephone Public Corp.
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Hiroshi Yamamoto
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E21 - EARTH DRILLING MINING
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