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

Irving Betrock

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Practice swim fin with perforations

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

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Standing/sitting lawn mower trailer

Land vehicles – Wheeled – Riding attachment
Patent

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Swim paddle

Exercise devices – Involving user translation or physical simulation thereof – Swimming
Patent

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Profile ID: LFUS-PAI-P-938137

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