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Servo amplification system
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Patent number 4,557,178
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Issue date Dec 10, 1985
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Clipp Control
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Clarence F. Batchelder
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Servo amplification system
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Patent number 4,394,102
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Issue date Jul 19, 1983
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Clipp Control Corporation
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Clarence F. Batchelder
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Torque multiplier assembly
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Patent number 4,215,599
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Issue date Aug 5, 1980
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Khartli, Inc.
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Clarence F. Batchelder
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B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS