| All Patents in class 408/15 |
Patents 1 -
10
of 10
      |
| Picture | Number | Date | Patentee | Title |
| | 157,700 | Dec. 15, 1874 | C. Sellers | Machines for Threading Bolts |
 | 765,601 | Jul. 19, 1904 | C. Seymour | Multiple-spindle boring-machine |
 | 1,006,532 | Oct. 24, 1911 | A. Casazza | Portable magnetic drill |
 | 1,017,878 | Feb. 20, 1912 | A.B. Landis | Bolt-threading machine |
 | 1,017,889 | Feb. 20, 1912 | A.B. Landis | Thread-cutting machine |
| | 1,454,190 | May 08, 1923 | W.L. Schellenbach | Horizontal Boring Mill |
| | 1,613,369 | Jan. 04, 1927 | E.L. Worbois | Nut-Tapping Machine |
 | 1,883,728 | Oct. 18, 1932 | J.F. Haas | Portable power driven threading machine |
| | 2,692,518 | Oct. 26, 1954 | J.B. Lukey, J.B. Armitage | Machine Tool |
| | 3,283,618 | Nov. 08, 1966 | E.W. Schatzman | Torque controlled machine tool |
