| All Patents in class 408/237 |
Patents 1 -
10
of 84
      |
| Picture | Number | Date | Patentee | Title |
| | 68,827 | Sep. 10, 1867 | A. Whipple, E.S. Young | Metal Drill |
| | 184,060 | Nov. 07, 1876 | A. Box | Radial Drill |
 | 441,509 | Nov. 25, 1890 | F. Schoff | Drill-support |
 | 453,780 | Jun. 09, 1891 | W.H. Warren | Radial Drilling Machine |
| | 462,309 | Nov. 03, 1891 | W.E. Gang | Drill Press |
 | 511,736 | Dec. 26, 1893 | C.L. Libby | Taper Attachment and Feed Mechanism for Vertical Boring Mill |
 | 513,128 | Jan. 23, 1894 | A.J. Mill | Radial drill |
 | 515,237 | Feb. 20, 1894 | J.P. Lavigne | Drilling Machine |
 | 515,988 | Mar. 06, 1894 | C.H. Baush | Drilling-machine |
 | 515,989 | Mar. 06, 1894 | C.H. Baush | Drilling-machine |
