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Rolf Ritter

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  • Geislingen, DE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Coffee percolator
    • Patent number 4,993,315
    • Issue date Feb 19, 1991
    • WMF Wurttembergische Metallwarenfabrik AG
    • Siegfried Huber
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...
  • Information Patent Grant

    Method of making knives
    • Patent number 4,147,918
    • Issue date Apr 3, 1979
    • Wurttembergische Metallwarenfabrik
    • Rolf Ritter
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...