Sewer Or Pipe Cleaner Patents (Class D32/14)
  • Sewer line proofer tool
    Patent number: D267823
    Type: Grant
    Filed: December 22, 1980
    Date of Patent: February 1, 1983
    Assignee: Sewer Rodding Equipment Co.
    Inventor: Charles J. Prange
  • Sewer cleaning machine
    Patent number: D271436
    Type: Grant
    Filed: June 26, 1981
    Date of Patent: November 15, 1983
    Assignee: Emerson Electric Co.
    Inventors: Larry F. Babb, Walter J. Noveske, Arthur J. Pulos, Paul B. Sweeney