| All Patents in class 409/270 |
Patents 1 -
10
of 14
      |
| Picture | Number | Date | Patentee | Title |
 | 1,855,766 | Apr. 26, 1932 | F.J. Lapointe | Broaching machine |
| | 2,002,924 | May 28, 1935 | E.G. Roehm, M. Romaine | Broaching Machine |
| | 2,024,253 | Dec. 17, 1935 | E.G. Roehm, M. Romaine | Broaching Machine |
 | 2,041,551 | May 19, 1936 | F.J. Lapointe | Surface broach |
| | 2,043,420 | Jun. 09, 1936 | E.G. Roehm | Broaching Machine |
| | 2,044,494 | Jun. 16, 1936 | E.C. Bullard | Metalworking |
| | 2,044,495 | Jun. 16, 1936 | E.C. Bullard | Metal Working Apparatus |
| | 2,044,497 | Jun. 16, 1936 | B.P. Schiltz | Method of Machining Metallic Workpieces |
| | 2,047,034 | Jul. 07, 1936 | E.G. Roehm, M. Romaine | Broaching Machine |
| | 2,052,248 | Aug. 25, 1936 | E.G. Roehm | Broaching Machine |
