| All Patents of Type: pipe and orifice cleaners |
Patents 1 -
12
of 12
      |
| Number | Date | Patentee | Title | Type |
| 313,509 | Mar. 10, 1885 | F.L. McGahan | Flue Cleaner | pipe and orifice cleaners |
| 572,037 | Nov. 24, 1896 | J.H. Voorhees | Steam Boiler Tube Cleaner | boiler repair tools |
| 1,593,542 | Jul. 20, 1926 | S.D. Shoemaker | Device for Cleaning Scale from Atmospheric Condenser Pipes | pipe and orifice cleaners |
| 1,657,086 | Jan. 24, 1928 | H.K. Hyrup | External Pipe Thread Cleaner and Chaser | pipe and orifice cleaners |
| 1,700,409 | Jan. 29, 1929 | H.K. Hyrup | Pipe-Thread Cleaner and Chaser | pipe and orifice cleaners |
| 1,851,766 | Mar. 29, 1932 | C.F. Hotchkiss, Jr. | Auger or Boring Device | pipe and orifice cleaners |
| 1,912,525 | Jun. 06, 1933 | C.F. Hotchkiss, Jr. | Pipe Cleaning Tool | pipe and orifice cleaners |
| 2,336,603 | Dec. 14, 1943 | P.S. Russel, A.K. Foulds | Orifice Clearing Means | pipe and orifice cleaners |
| 2,349,033 | May 16, 1944 | N.R. Elliott | Boring Head | pipe and orifice cleaners |
| 2,416,267 | Feb. 18, 1947 | W.S. Landon | Automatic Orifice Cleaning Device | pipe and orifice cleaners |
| 2,493,297 | Jan. 03, 1950 | W.S. Landon | Orifice Cleaning Means | pipe and orifice cleaners |
| 2,497,223 | Feb. 14, 1950 | W.S. Landon | Orifice Cleaning Means | pipe and orifice cleaners |
