| Patents for C. E. Doyle |
Patents 16 -
30
of 30
      |
| Number | Date | Patentee | Title | Type |
| 507,041 | Oct. 17, 1893 | J. Rhino | Ratchet-Wrench | ratchet wrenches |
| 508,845 | Nov. 14, 1893 | M.D. Schaller | Ratchet Wrench | ratchet wrenches |
| 513,916 | Jan. 30, 1894 | E.H. Goslin | Wrench | pipe wrenches |
| 545,424 | Aug. 27, 1895 | R.D. Shafer, F.L. Felger | Pipe Wrench | pipe wrenches |
| 550,214 | Nov. 19, 1895 | E.O. Bryden | Wrist Pin | |
| 556,236 | Mar. 10, 1896 | F.S. Albright | Improve Calf and Cow Weaner | animal weaners |
| 572,339 | Dec. 01, 1896 | G. Disrud | Calf Weaner | animal weaners |
| 601,147 | Mar. 22, 1898 | S.J. Johnston | Wrench Jack | axle nut wrench combination tools |
| 601,302 | Mar. 29, 1898 | S.J. Johnston | Combination-tool | brace wrenches |
| 609,872 | Aug. 30, 1898 | D.M. Campbell | Bale Tie | ratchet wrenches |
| 618,075 | Jan. 24, 1899 | N.P. Eastman | Pipe and Rod Wrench | pipe wrenches |
| 631,987 | Aug. 29, 1899 | F.H. De Tray | Dividers | dividers |
| 636,238 | Nov. 07, 1899 | J.O. Bechdolt | Hog Ring | hog ring |
| 881,530 | Mar. 10, 1908 | E. Barker | Gluing Clamp | clamps |
| 921,171 | May 11, 1909 | P.E. Shortt | Combination tool (brace-wrench) | brace wrenches |
