TREA

Thomas R. Krowl

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  • N. Tonawanda, NY, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Staple gun application of vinyl siding
    • Patent number 4,731,917
    • Issue date Mar 22, 1988
    • National Gypsum Company
    • Thomas R. Krowl
    • B25 - HAND TOOLS PORTABLE POWER-DRIVEN TOOLS MANIPULATORS
  • Information Patent Grant

    Vinyl siding attachment
    • Patent number 4,435,933
    • Issue date Mar 13, 1984
    • National Gypsum Company
    • Thomas R. Krowl
    • E04 - BUILDING
  • Information Patent Grant

    Vinyl siding attachment
    • Patent number 4,435,938
    • Issue date Mar 13, 1984
    • National Gypsum Company
    • Edward J. Rutkowski
    • E04 - BUILDING