| All Patents in class 409/268 |
Patents 1 -
15
of 16
      |
| Number | Date | Patentee | Title | Type |
| 395,213 | Dec. 25, 1888 | M.E. Campfield | Machine For Truing and Dressing Wrench Blanks | |
| 489,523 | Jan. 10, 1893 | V.F. Carpenter | Wrench Milling Machine | making wrenches |
| 2,024,252 | Dec. 17, 1935 | E.G. Roehm, M. Romaine | Broaching Machine | broaching machines |
| 2,024,254 | Dec. 17, 1935 | E.G. Roehm, M. Romaine | Broaching Machine | broaching machines |
| 2,043,420 | Jun. 09, 1936 | E.G. Roehm | Broaching Machine | broaching machines |
| 2,047,034 | Jul. 07, 1936 | M. Romaine, E.G. Roehm | Broaching Machine | broaching machines |
| 2,049,623 | Aug. 04, 1936 | E.G. Roehm | Broaching Machine | broaching machines |
| 2,052,248 | Aug. 25, 1936 | E.G. Roehm | Broaching Machine | broaching machines |
| 2,090,119 | Aug. 17, 1937 | W.R. Meyer, W.F. Groene | Broaching Lathe | metal lathes |
| 2,194,568 | Mar. 26, 1940 | W. Trible, M. Romaine | Broaching Machine | broaching machines |
| 2,255,221 | Sep. 09, 1941 | F.J. Lapointe | Method and means for surface broaching | broaching machines |
| 2,264,538 | Dec. 02, 1941 | F.J. Lapointe | Broaching machine | broaching machines |
| 2,280,229 | Apr. 21, 1942 | H.J. Siekmann, W.F. Groene | Multiple Spindle Broaching Lathe | crankshaft lathes |
| 2,408,521 | Oct. 01, 1946 | F.J. Lapointe | Broaching machine | broaching machines |
| 2,571,904 | Oct. 16, 1951 | C.O. Lofgren | Broaching machine | broaching machines |
