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John J. Jecmen

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  • Riverside, IL, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Chain break safety device
    • Patent number 4,696,375
    • Issue date Sep 29, 1987
    • Harris Preble Company
    • Ronald Matthews
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Fire stop safety astragal
    • Patent number 4,224,767
    • Issue date Sep 30, 1980
    • Harris Preble Company
    • James M. Jecmen
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Astragal
    • Patent number 3,943,663
    • Issue date Mar 16, 1976
    • Harris Preble Company
    • James M. Jecmen
    • B66 - HOISTING LIFTING HAULING