TREA

Roger G. Cleffman

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  • Muscatine, IA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus for splicing tread strips
    • Patent number 4,173,509
    • Issue date Nov 6, 1979
    • Bandag Incorporated
    • Ralph C. Raabe
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Splicing of tread strips
    • Patent number 4,082,592
    • Issue date Apr 4, 1978
    • Bandag Incorporated
    • Ralph C. Raabe
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL