TREA

Erhard P. Walter

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  • Bramalea, CA
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Patents Grantslast 30 patents

  • Information Patent Grant

    Reinforced file folder
    • Patent number 4,749,121
    • Issue date Jun 7, 1988
    • Datafile Limited
    • Donald T. Barber
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Method of producing a reinforced file folder
    • Patent number 4,588,463
    • Issue date May 13, 1986
    • Datafile Limited
    • Donald T. Barber
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL