| All Patents in class 408/240 |
Patents 31 -
45
of 65
      |
| Number | Date | Patentee | Title | Type |
| 488,463 | Dec. 20, 1892 | D.B. Whitehill | Auger-Handle | auger handles |
| 515,292 | Feb. 20, 1894 | A.H. Kent | Tap Wrench | tap wrenches and die stocks |
| 532,285 | Jan. 08, 1895 | E.J. Nichols | Tap And Reamer Wrench | tap wrenches and die stocks |
| 533,407 | Jan. 29, 1895 | E.L. Barton | Thread-cutting brace | |
| 594,212 | Nov. 23, 1897 | C.J. Pihl | Tap Wrench | tap wrenches and die stocks |
| 595,312 | Dec. 14, 1897 | H.B. Keiper | Tap Wrench | tap wrenches and die stocks |
| 598,591 | Feb. 08, 1898 | F. Barrell | Wrench Or Holding Device | tap wrenches and die stocks |
| 602,449 | Apr. 19, 1898 | H. Hill | Boring Tool | |
| 623,435 | Apr. 18, 1899 | A.J. Smart | Tap Wrench | tap wrenches and die stocks |
| 670,899 | Mar. 26, 1901 | W.E. Horsfield | Tap Wrench | tap wrenches and die stocks |
| 802,894 | Oct. 24, 1905 | A.J. Smart | Tap Wrench | tap wrenches and die stocks |
| 857,358 | Jun. 18, 1907 | E.A. Muller | Tool Holding Device | vertical boring mills |
| 965,970 | Aug. 02, 1910 | F.O. Wells | Tap Wrench | tap wrenches and die stocks |
| 994,477 | Jun. 06, 1911 | O. Parpart | Tap-wrench | tap wrenches and die stocks |
| 1,038,967 | Sep. 17, 1912 | W. Russell | Tap-wrench | tap and die holders |
