4. Motor vehicles
  5. Steam traction engines

Charles Patrick Duncan Davidson

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Bicycle frame

Transportation – Cycle or motorcycle – Bicycle or frame
Patent

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Cycle propelled by motor and pedals

Motor vehicles – Steam traction engines
Patent

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Cycles

Motor vehicles – Steam traction engines
Patent

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Electrically assisted cycle

Motor vehicles – Power – Battery mountings and holders
Patent

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Motor and pedal propeller cycle

Motor vehicles – Steam traction engines
Patent

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Profile ID: LFUS-PAI-P-887537

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