4. Buoys, rafts, and aquatic devices
  5. Water rescue or life protecting apparatus
  6. Personal flotation device

Mitsushiro Matsuoka

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Air cylinder fastening device

Hydraulic and earth engineering – Diving – Suit or accessory therefor
Reexamination Certificate

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Diving buoyancy compensator

Buoys – rafts – and aquatic devices – Water rescue or life protecting apparatus – Personal flotation device
Patent

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Diving fin

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

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Regulator for diving

Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Reexamination Certificate

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Regulator for diving

Surgery – Respiratory method or device – Means for supplying respiratory gas under positive pressure
Reexamination Certificate

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Profile ID: LFUS-PAI-P-590674

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