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Servo-system
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Patent number 4,232,259
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Issue date Nov 4, 1980
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Yokogawa Electric Works, Ltd.
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Nobuo Kaieda
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G05 - CONTROLLING REGULATING
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Servo-system
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Patent number 4,161,678
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Issue date Jul 17, 1979
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Yokogawa Electric Works, Ltd.
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Nobuo Kaieda
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G05 - CONTROLLING REGULATING
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3611040
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Patent number 3,611,040
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Issue date Oct 5, 1971
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G05 - CONTROLLING REGULATING
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2822978
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Patent number 2,822,978
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Issue date Feb 11, 1958
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G05 - CONTROLLING REGULATING
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2367868
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Patent number 2,367,868
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Issue date Jan 23, 1945
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G05 - CONTROLLING REGULATING
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2367746
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Patent number 2,367,746
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Issue date Jan 23, 1945
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G05 - CONTROLLING REGULATING