4. Motor vehicles
  5. Steering by driving
  6. Independently operable drive motors

Gerald T. Griggs

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Clutch for multi-directional transportation device

Motor vehicles – Motor-carrying attachments – Driven steering wheel type
Reexamination Certificate

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Motorized chair base

Motor vehicles – Power – Electric
Reexamination Certificate

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Multi-directional motorized wheelchair

Motor vehicles – Steering by driving – Independently operable drive motors
Patent

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Patient transfer device

Beds – With means for relocating an invalid – With a hoisting – lifting – elevating – or raising device
Reexamination Certificate

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Walking aid

Land vehicles – Wheeled – Extensible
Patent

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Profile ID: LFUS-PAI-P-1688751

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