TREA

Betsy Helen Berg

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  • London, EN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Cloth reserve dyeing
    • Patent number 3,975,151
    • Issue date Aug 17, 1976
    • BSG Designs Inc.
    • Betsy Helen Berg
    • D06 - TREATMENT OF TEXTILES OR THE LIKE LAUNDERING FLEXIBLE MATERIALS NOT OTH...