| All Patents in class 408/137 |
Patents 1 -
10
of 56
      |
| Picture | Number | Date | Patentee | Title |
 | 9,729 | May 17, 1853 | A.H. Longley | Improvement in Machines for Cutting Wooden Screws |
 | 10,261 | Nov. 22, 1853 | H. Smith | Apparatus for cutting screws on bedstead-rails, &c. |
 | 18,612 | Nov. 10, 1857 | J. Thrasher | Clamp for Boring Hubs |
 | 18,977 | Dec. 29, 1857 | L. Kittinger | Device for throwing into and out of gear the tool of mortising-machines |
| | 37,384 | Jan. 13, 1863 | J.C. Chapman | Boring and Squaring Off Cylinders |
 | 55,918 | Jun. 26, 1866 | F. Shaller | Improved drilling-machine |
 | 86,001 | Jan. 19, 1869 | C.W. Coe | Improved drilling and bolt-tapping machine |
 | 95,483 | Oct. 05, 1869 | G. Tainter, W.J. Johnson | Improvement in boring-tool |
 | 95,627 | Oct. 12, 1869 | A. Allan | Improvement in boring-tool |
| | 138,570 | May 06, 1873 | H. Martin | Drilling Machines |
