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Raymond L. Wilhelm

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  • Orange, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Vacuum toilet system
    • Patent number 5,454,936
    • Issue date Oct 3, 1995
    • Oy Wartsila AB
    • Arne Ask
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Rinse water valve for vacuum toilet system
    • Patent number 4,811,754
    • Issue date Mar 14, 1989
    • Oy Wartsila AB
    • Raymond L. Wilhelm
    • B64 - AIRCRAFT AVIATION COSMONAUTICS