4. Land vehicles
  5. Skates
  6. With propulsion means driven by occupant

Hyman Suroff

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Energy efficient apparatus

Prime-mover dynamo plants – Miscellaneous – Drive gearing
Patent

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Energy saving ice skate attachment device

Land vehicles – Ski or skate appliance or attachment
Patent

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Self-propelled roller skate

Land vehicles – Skates – With propulsion means driven by occupant
Patent

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Wheel locking apparatus

Locks – Special application – For control and machine elements
Patent

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Profile ID: LFUS-PAI-P-832145

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