| Patents for Fred P. Hopfeld |
Patents 1 -
10
of 11
      |
| Picture | Number | Date | Patentee | Title |
 | 2,461,687 | Feb. 15, 1949 | F.P. Hopfeld | Welder's clamp |
| | GB-631,281 | Oct. 31, 1949 | A.M. Sasgen, F.P. Hopfeld | Improvements in or relating to vises |
 | 2,546,906 | Mar. 27, 1951 | A.M. Sasgen, F.P. Hopfeld | Screw-actuated vise having releasable nut for quickly opening or closing the jaws |
 | 2,560,131 | Jul. 10, 1951 | F.P. Hopfeld, A.M. Sasgen | Hand truck with elevator platform |
 | 2,656,864 | Oct. 27, 1953 | F.P. Hopfeld | Straight beam clamp with adjustable self-locking jaw |
 | 2,708,048 | May 10, 1955 | F.P. Hopfeld | Handling equipment for barrels or the like |
 | 2,905,347 | Sep. 22, 1959 | F.P. Hopfeld | Drum handling lift truck |
 | 2,948,363 | Aug. 09, 1960 | F.P. Hopfeld | Telescoping elevators |
 | 3,052,323 | Sep. 04, 1962 | F.P. Hopfeld | Lift truck |
 | 3,216,599 | Nov. 09, 1965 | F.P. Hopfeld | Lift truck with a detachable mast assembly, and a propelling and elevating control system |
