| All Patents in class 409/268 |
Patents 1 -
10
of 16
      |
| Picture | Number | Date | Patentee | Title |
 | 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 |
| | 2,024,252 | Dec. 17, 1935 | E.G. Roehm, M. Romaine | Broaching Machine |
| | 2,024,254 | Dec. 17, 1935 | E.G. Roehm, M. Romaine | Broaching Machine |
| | 2,043,420 | Jun. 09, 1936 | E.G. Roehm | Broaching Machine |
| | 2,047,034 | Jul. 07, 1936 | M. Romaine, E.G. Roehm | Broaching Machine |
| | 2,049,623 | Aug. 04, 1936 | E.G. Roehm | Broaching Machine |
| | 2,052,248 | Aug. 25, 1936 | E.G. Roehm | Broaching Machine |
| | 2,090,119 | Aug. 17, 1937 | W.R. Meyer, W.F. Groene | Broaching Lathe |
| | 2,194,568 | Mar. 26, 1940 | W. Trible, M. Romaine | Broaching Machine |
