4. Machine element or mechanism
  5. Elements
  6. Cranks and pedals

Robert H. Girvin

Inventor

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Bicycle crank assembly

Machine element or mechanism – Elements – Cranks and pedals
Patent

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Bicycle suspension system

Land vehicles – Wheeled – Occupant propelled type
Patent

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Collapsible wheelchair and lift assembly

Land vehicles – Wheeled – Occupant propelled type
Patent

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Collapsible wheelchair and lift assembly

Land vehicles – Wheeled – Occupant propelled type
Patent

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Handlebar assembly for cycles

Machine element or mechanism – Control lever and linkage systems – Elements
Patent

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Profile ID: LFUS-PAI-P-210271

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