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Electro-hydraulic steering system
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Patent number 5,489,005
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Issue date Feb 6, 1996
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Caterpillar Inc.
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Tony L. Marcott
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B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
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Electronic implement control
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Issue date Nov 21, 1995
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Caterpillar Inc.
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Robert D. Greer
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E02 - HYDRAULIC ENGINEERING FOUNDATIONS SOIL SHIFTING
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Steering control arrangement
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Patent number 5,249,639
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Issue date Oct 5, 1993
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Caterpillar Inc.
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Jerry D. Marr
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B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
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Steering control system
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Patent number 4,736,811
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Issue date Apr 12, 1988
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Caterpillar Inc.
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Howard A. Marsden
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B62 - LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS