TREA

Bernhard Kessel

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  • 8073 Kosching, DT
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Patents Grantslast 30 patents

  • Information Patent Grant

    Odor trap for drain
    • Patent number 4,092,747
    • Issue date Jun 6, 1978
    • Bernhard Kessel
    • E03 - WATER SUPPLY SEWERAGE
  • Information Patent Grant

    Manually closable anti-backup trap
    • Patent number 4,074,686
    • Issue date Feb 21, 1978
    • Bernhard Kessel
    • E03 - WATER SUPPLY SEWERAGE