TREA

Daniel B. Merrifield

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  • Redondo Beach, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Underwater diving system
    • Patent number 4,237,917
    • Issue date Dec 9, 1980
    • U.S. Divers Co.
    • Daniel B. Merrifield
    • B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
  • Information Patent Grant

    Underwater diving system
    • Patent number 4,062,356
    • Issue date Dec 13, 1977
    • U.S. Divers Co.
    • Daniel B. Merrifield
    • B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT