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Analog control
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Patent number 6,543,578
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Issue date Apr 8, 2003
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Safety Dynamicon, Inc.
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Ernest J. Merz
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B66 - HOISTING LIFTING HAULING
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Analog control
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Patent number 6,170,606
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Issue date Jan 9, 2001
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Safety Dynamicon, Inc.
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Ernest J. Merz
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B66 - HOISTING LIFTING HAULING
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Hydraulic heavy equipment
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Patent number 5,826,483
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Issue date Oct 27, 1998
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Kabushiki Kaisha F.F.C.
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Mitsuhiro Koseki
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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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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System for controlling a power shovel
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Patent number 4,059,196
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Issue date Nov 22, 1977
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Hokushin Electric Works, Ltd.
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Hisanori Uchino
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3880304
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Patent number 3,880,304
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Issue date Apr 29, 1975
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3550794
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Patent number 3,550,794
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Issue date Dec 29, 1970
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3340942
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Patent number 3,340,942
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Issue date Sep 12, 1967
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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3144146
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Patent number 3,144,146
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Issue date Aug 11, 1964
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING