TREA

John R. Mulkey

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  • Westminster, CO, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Tank shoe spring and double seal
    • Patent number 5,515,989
    • Issue date May 14, 1996
    • Tanco Engineering, Inc.
    • Jack G. Petrie
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Space saving double seal
    • Patent number 5,284,269
    • Issue date Feb 8, 1994
    • Jack G. Petrie
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL