| All Patents in class 269/249 |
Patents 31 -
45
of 52
      |
| Number | Date | Patentee | Title | Type |
| 1,659,342 | Feb. 14, 1928 | M. Wetzler | Clamp | bar and pipe clamps |
| 1,809,768 | Jun. 09, 1931 | M. Wetzler | Clamping Device | miter and corner clamps |
| 1,918,469 | Jul. 18, 1933 | J.M. Hargrave | Clamp and method of manufacturing the same | C clamps |
| 2,016,088 | Oct. 01, 1935 | J.M. Hargrave | c clamp | C clamps |
| 2,168,257 | Aug. 01, 1939 | D.L. Farmer | Clamp | bar and pipe clamps |
| 2,190,585 | Feb. 13, 1940 | H.A. Rhinevault | C Clamp | clamps |
| 2,245,089 | Jun. 10, 1941 | J.M. Hargrave | Welder's clamp | welder |
| D143,075 | Dec. 04, 1945 | C.H. Ingwer | Pipe Cutting Tool | pipe cutters |
| D143,096 | Dec. 04, 1945 | A.M. Sasgen | Design for a C-clamp | hand screws |
| 2,430,458 | Nov. 11, 1947 | L.F. Farrell | Automatic screw control | bench vises |
| 2,461,687 | Feb. 15, 1949 | F.P. Hopfeld | Welder's clamp | C clamps |
| 2,528,666 | Nov. 07, 1950 | O.F. Potts | Spatter Shield for C-Clamps | clamps |
| 2,550,629 | Apr. 24, 1951 | A. Weiz | Strut means for adjustable angle vises | vise mechanisms |
| 2,565,965 | Aug. 28, 1951 | P. Hartmann | Cam for sliding screw-operated vise jaws to final clamping position | machinist vises |
| 2,610,662 | Sep. 16, 1952 | E.L. Ratcliff | Toggle actuated quick-action C-clamp | C clamps |
