TREA

Wojciech S. Drewnowski

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  • Richmond, VA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of and apparatus for making tubular envelopes
    • Patent number 5,442,897
    • Issue date Aug 22, 1995
    • Hauni-Richmond, Inc.
    • Alfred Hinzmann
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Tampon
    • Patent number 5,004,467
    • Issue date Apr 2, 1991
    • Hauni-Richmond, Inc.
    • Alfred Hinzmann
    • A61 - MEDICAL OR VETERINARY SCIENCE HYGIENE