4. Motors: expansible chamber type
  5. Plural relatively movable or rigidly interconnected working...
  6. Motors connected in series

William Douglas Graham

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Cylinder mounted stroke control

Expansible chamber devices – Displacement control of plural cylinders arranged in... – Predetermined discrete incremental adjustment positions
Reexamination Certificate

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Flexible frame for a multi-section implement

Earth working – Plural wheeled implements – Outrigged implement adjustable inwardly
Patent

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Folding walkway for seeding machine

Planting – Drilling – Frame and planting-element arrangement
Reexamination Certificate

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Frame folding arrangement with vertically pivoting planting...

Planting – Drilling – Frame and planting-element arrangement
Reexamination Certificate

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Gauge structure for a cylinder operated depth control

Earth working – With ground support vertically adjustable relative to frame – Flexible or lost motion connection to actuator
Patent

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Profile ID: LFUS-PAI-P-1048519

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