TREA

Ralf Sauer

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  • Essen, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Dust filter bag for a vacuum cleaner
    • Patent number 5,766,283
    • Issue date Jun 16, 1998
    • Vorwerk & Co. Interholding GmbH
    • Germann Bumb
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Dust filter bag for a vacuum cleaner
    • Patent number 5,468,271
    • Issue date Nov 21, 1995
    • Vorwerk & Co. Interholding GmbH
    • Ralf Sauer
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...