| All Patents in class 74/612 | 
| Patents 1 - 
					11
					of 11 
       | 
| Number | Date | Patentee | Title | Type | 
| 694,834 | Mar. 04, 1902 | A. Cook | Guard for woodworking-machines | woodworking machine safety guards | 
| 1,001,858 | Aug. 29, 1911 | J.M. Jones | Safety-guard | stamping presses | 
| 1,333,135 | Mar. 09, 1920 | J.A. Secor | Foot Guard for Flywheels | safety guards and apparatus | 
| 1,721,740 | Jul. 23, 1929 | D.C. Klausmeyer | Shaft Guard | metalworking machine mechanisms | 
| 2,071,954 | Feb. 23, 1937 | L. Scruggs | Chuck or Tool Holder | chucks | 
| 2,153,847 | Apr. 11, 1939 | L. Scruggs | Chuck or Tool Holder | metalworking machine tool holders | 
| 2,443,734 | Jun. 22, 1948 | E.J. Kearney, O.W. Carpenter, Jr., J.B. Armitage, W.M. Pohl | Machine Tool Guard | metalworking machine mechanisms | 
| 2,556,936 | Jun. 12, 1951 | E.A. Munschauer, Jr. | Hold-down for shears |  | 
| 2,825,268 | Mar. 04, 1958 | G. De Mambro, A.M. De Mambro | Safety shield |  | 
| 2,913,926 | Nov. 24, 1959 | L.C. Hammond | Brush-type guard for printers' saw | printer | 
| 4,528,868 | Jul. 16, 1985 | R.L. Hennesen | Barrier guard for shears, presses and the like | metalworking machine safety guards |