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

John David Melius

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Dolphin-tail style multi-purpose swim fin and assembly

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

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Ergonomic swim fin apparatus

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

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Multiple-serial-hydrofoil swim fins

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

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Swim fins flexible body/boot, firm wing caudal tail/blade and po

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

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Profile ID: LFUS-PAI-P-622451

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