4. Boots, shoes, and leggings

Oliver W. Johnson

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Automatic steering apparatus for crop vehicle

Boots – shoes – and leggings
Patent

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Automatic steering apparatus using reflected signals

Boots – shoes – and leggings
Patent

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Controller for fluid pressure operated devices

Motors: expansible chamber type – With motive fluid valve – Relatively movable serial valves
Patent

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Controller for fluid pressure operated devices

Fluid handling – Systems – Supply and exhaust
Patent

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Load sensing hydraulic system

Power plants – Pressure fluid source and motor – With control means for structure storing work driving energy
Patent

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Profile ID: LFUS-PAI-P-97801

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