| All Patents in class 74/531 |
Patents 1 -
10
of 16
      |
| Picture | Number | Date | Patentee | Title |
 | 365,755 | Jun. 28, 1887 | S.E. Moore | Clothes Pin |
 | 642,178 | Jan. 30, 1900 | J.R. Thomas, H.S. Spencer | Clamping device |
 | 843,253 | Feb. 05, 1907 | W.A. Barker | Friction-lock |
| | 1,382,529 | Jun. 21, 1921 | S.S. Morton | Lever-Lock |
 | 1,568,295 | Jan. 05, 1926 | J.A. Schleicher | Locking device for depth gauge micrometers |
 | 1,568,296 | Jan. 05, 1926 | J.A. Schleicher | Spindle clamping device |
| | 2,151,647 | Mar. 21, 1939 | B. Wheeler | Valve Actuating Mechanism |
| | 2,307,974 | Jan. 12, 1943 | H.H. Turner | Governor |
| | 2,380,039 | Jul. 10, 1945 | V.W. Gideon | Turning Tool |
| | 2,668,515 | Feb. 09, 1954 | T.H. Evans | Micrometer Dial Mechanism |
