Patents Assigned to Angus McColl
  • Water heater for a stock tank
    Patent number: D290289
    Type: Grant
    Filed: September 4, 1984
    Date of Patent: June 9, 1987
    Assignee: Angus McColl
    Inventors: Hans G. Pressel, Gary H. Darnall, Harold F. Winkler, Angus McColl