Patents Represented by Attorney Paul Stux
  • Patent number: D270054
    Type: Grant
    Filed: December 11, 1981
    Date of Patent: August 9, 1983
    Inventor: Helmut Spycher
  • Patent number: D271017
    Type: Grant
    Filed: September 24, 1980
    Date of Patent: October 18, 1983
    Inventor: Helmut Spycher
  • Patent number: D272537
    Type: Grant
    Filed: October 13, 1981
    Date of Patent: February 7, 1984
    Inventor: Helmut Spycher