TREA

Robert B. Hammes

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  • Burlington, WI, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Ice lifesaving device
    • Patent number 5,209,685
    • Issue date May 11, 1993
    • Robert B. Hammes
    • B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT
  • Information Patent Grant

    Accessory serving as life saving aid
    • Patent number 4,002,366
    • Issue date Jan 11, 1977
    • Robert B. Hammes
    • B63 - SHIPS OR OTHER WATERBORNE VESSELS RELATED EQUIPMENT