4. Hydraulic and earth engineering
  5. Diving
  6. Suit or accessory therefor

John R. Colston

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Breathing apparatus

Surgery – Truss – Pad
Patent

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Diver support apparatus

Hydraulic and earth engineering – Diving – Suit or accessory therefor
Patent

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Hand controller

Communications: electrical – Audible indication – Percussion-type sound producer
Patent

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Seawater hydraulic vane-type motor

Rotary expansible chamber devices – Grooved abutting cylinder-rotating member end surfaces – Radial groove
Patent

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Underwater breathing apparatus

Surgery – Truss – Pad
Patent

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Profile ID: LFUS-PAI-P-702393

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