| Patents for Ridge Tool Co. |
Patents 1 -
10
of 10
      |
| Number | Date | Patentee | Title | Type |
| 1,549,164 | Aug. 11, 1925 | W.O. Thewes | Pipe Wrench | pipe wrenches |
| 1,552,091 | Sep. 01, 1925 | W.O. Thewes | Pipe Wrench | pipe wrenches |
| 1,727,623 | Sep. 10, 1929 | W.O. Thewes | Wrench | pipe wrenches |
| 1,833,980 | Dec. 01, 1931 | W.O. Thewes | Pipe cutter | pipe cutters |
| 2,004,639 | Jun. 11, 1935 | W.O. Thewes | Diestock | tap wrenches and die stocks |
| 2,051,755 | Aug. 18, 1936 | W.O. Thewes | Pipe Wrench | pipe wrenches |
| 2,076,830 | Apr. 13, 1937 | W.O. Thewes | Pipe Wrench | pipe wrenches |
| D143,075 | Dec. 04, 1945 | C.H. Ingwer | Pipe Cutting Tool | pipe cutters |
| 2,780,944 | Feb. 12, 1957 | E.J. Ondeck | Reversible drive for power tools | handheld power tool accessories |
| 3,015,246 | Jan. 02, 1962 | W. Buyer | Slideable Outer Jaw Wrench | nut wrenches |
