Patents Assigned to Hartman Products
  • Patent number: D267205
    Type: Grant
    Filed: September 8, 1980
    Date of Patent: December 7, 1982
    Assignee: Hartman Products
    Inventor: Ronald Weinhart
  • Patent number: D283086
    Type: Grant
    Filed: January 30, 1984
    Date of Patent: March 25, 1986
    Assignee: Hartman Products
    Inventor: Ronald Weinhart