4. Motor vehicles
  5. Power
  6. Electric

Jeffery D. Campbell

Inventor

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Electric handcart

Motor vehicles – Power – Electric
Patent

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Electrically conductive chair support with sliding bushing

Electricity: electrical systems and devices – Discharging or preventing accumulation of electric charge – Specific conduction means or dissipator
Patent

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Four wheel drive motorized carrier

Motor vehicles – Special driving device – Portable track
Reexamination Certificate

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Motorized auger

Earth working – With drive means for tool or cleaner – Guided by walking attendant
Patent

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Offroad tracked vehicle for snow and ice

Motor vehicles – Steering by driving – Independently operable drive motors
Reexamination Certificate

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Profile ID: LFUS-PAI-P-440095

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