| All Patents in class 409/277 |
Patents 1 -
10
of 11
      |
| Picture | Number | Date | Patentee | Title |
 | 430,133 | Jun. 17, 1890 | A.M. Little | Mandrel for key-seat-cutting machines |
 | 1,421,014 | Jun. 27, 1922 | F.J. Lapointe | Attachment for broaching machines |
| | 1,815,647 | Jul. 21, 1931 | L.H. Blood | Broaching Machine |
| | 1,848,044 | Mar. 01, 1932 | L.H. Blood | Broaching Machine |
 | 1,938,233 | Dec. 05, 1933 | J.H. Illig, C. Vallone | Broaching Machine |
| | 2,049,623 | Aug. 04, 1936 | E.G. Roehm | Broaching Machine |
| | 2,065,101 | Dec. 22, 1936 | M. Romaine | Broaching Machine Fixture |
| | 2,072,563 | Mar. 02, 1937 | J.E. Lynch, A.H. Hawley, H.L. Pope | Automatic Multiple Broaching Machine |
| | 2,205,277 | Jun. 18, 1940 | H. Horlacher, A.H. Hawley, M. Romaine | Broaching Machine |
| | 2,225,731 | Dec. 24, 1940 | W.D. Averill | Broaching Machine |
