4. Motors: spring, weight, or animal powered
  5. Composite
  6. Spring only
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Device for changing the force acting on a reversibly rotatable s

Motors: spring – weight – or animal powered – Composite – Spring only
Patent

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Driving mechanism, and vehicle therewith

Motors: spring – weight – or animal powered – Composite – Spring only
Patent

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Energy storage apparatus

Motors: spring – weight – or animal powered – Composite – Spring only
Patent

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Flat torque rate drive system

Motors: spring – weight – or animal powered – Composite – Spring only
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Mechanical energy device

Motors: spring – weight – or animal powered – Composite – Spring only
Patent

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Power unit

Motors: spring – weight – or animal powered – Composite – Spring only
Patent

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Solid state energy storage

Motors: spring – weight – or animal powered – Composite – Spring only
Patent

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Spring drive assembly

Motors: spring – weight – or animal powered – Composite – Spring only
Patent

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Spring motor

Motors: spring – weight – or animal powered – Composite – Spring only
Patent

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Spring motor

Motors: spring – weight – or animal powered – Composite – Spring only
Patent

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Spring motor assembly

Motors: spring – weight – or animal powered – Composite – Spring only
Patent

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