| All Patents in class 74/615 |
Patents 1 -
9
of 9
      |
| Picture | Number | Date | Patentee | Title |
 | 317,149 | May 05, 1885 | A.J. Langelier | Heel-machine |
| | 654,659 | Jul. 31, 1900 | F. Marggraff | Automatic Stop Mechanism for Metal Working Machines |
| | 787,339 | Apr. 11, 1905 | R.F. Massa | Attachment for Drop Hammers |
 | 1,041,092 | Oct. 15, 1912 | J.M. Jones | Safety-guard for foot or screw presses |
| | 1,046,840 | Dec. 10, 1912 | W.T. Murphy | Safety device |
 | 1,545,929 | Jul. 14, 1925 | J.P. Udal | Press guard |
| | 1,938,778 | Dec. 12, 1933 | L.F. Nenninger | Cutter Guard |
 | 2,240,915 | May 06, 1941 | W.H. Searjeant | Safety guard |
| | 2,571,528 | Oct. 16, 1951 | M. Braccio | Safety Guard Hammer and the Like |
