| All Patents in class 408/131 |
Patents 1 -
10
of 27
      |
| Picture | Number | Date | Patentee | Title |
 | 297,383 | Apr. 22, 1884 | H. Hobbs, E.F. Gordon | Suspended drilling-machine |
 | 441,509 | Nov. 25, 1890 | F. Schoff | Drill-support |
 | 472,546 | Apr. 12, 1892 | W.D. McNaull | Radial-drilling machine |
 | 506,342 | Oct. 10, 1893 | M.F. Smith | Metal Cutting and Working Machine |
| | 536,815 | Apr. 02, 1895 | W. Murchey | Nipple Cutting Machine |
 | 679,672 | Jul. 30, 1901 | W. Herman | Drilling-machine |
 | 1,009,201 | Nov. 21, 1911 | A.C. Vick | Mortising machine |
 | 1,032,409 | Jul. 16, 1912 | M. Himoff | Radial drill-press |
| | 1,338,752 | May 04, 1920 | A.M. Sosa | Drilling Machinery |
| | 1,413,790 | Apr. 25, 1922 | A.M. Sosa, H.W. Schatz | Drilling Machine |
