4. Buoys, rafts, and aquatic devices
  5. Swimming aid to increase stroke efficiency
  6. Foot attached

Robert B. Evans

Inventor

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Adjustable swim fin

Marine propulsion – Screw propeller – With means effecting or facilitating movement of propulsion...
Reexamination Certificate

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Articulated attachment means for swimming fin

Buoys – rafts – and aquatic devices – Swimming aid to increase stroke efficiency – Foot attached
Patent

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Closed shoe swim fin

Buoys – rafts – and aquatic devices – Swimming aid to increase stroke efficiency – Foot attached
Patent

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Closed-shoe swim fin

Games – toys – and sports goods – Toy – Representation or scale model
Patent

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Dive blade swim fin

Games – toys – and sports goods – Sports equipment – Water sports
Design Patent

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Profile ID: LFUS-PAI-P-244388

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