TREA

Wilhelm Schelkmann

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  • Witten, DT
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method for retreading and repairing vehicle tires
    • Patent number 4,093,481
    • Issue date Jun 6, 1978
    • Vakuum Vulk Holdings Limited
    • Wilhelm Schelkmann
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Method of retreading tires
    • Patent number 3,989,563
    • Issue date Nov 2, 1976
    • Vakuum Vulk Holdings Ltd.
    • Wilhelm Schelkmann
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Tread for the recapping of tires and method of making the same
    • Patent number 3,970,131
    • Issue date Jul 20, 1976
    • Vakuum Vulk Holdings Ltd.
    • Wilhelm Schelkmann
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL
  • Information Patent Grant

    Method of making a tread for the recapping of tires
    • Patent number 3,945,871
    • Issue date Mar 23, 1976
    • Vakuum Vulk Holdings Ltd.
    • Wilhelm Schelkmann
    • B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL