Hermann Ritzenhoff

Person

  • Marburg, Lahn, DE

Patents Grantslast 30 patents

  • Information Patent Grant

    Metal tear off cap

    • Patent number 4,149,647
    • Issue date Apr 17, 1979
    • Gebruder Seidel KG
    • Hermann Ritzenhoff
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Metal tear-off cap

    • Patent number 4,127,209
    • Issue date Nov 28, 1978
    • Gebruder Seidel KG
    • Hermann Ritzenhoff
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL