| All Patents in class 254/98 |
Patents 1 -
15
of 21
      |
| Number | Date | Patentee | Title | Type |
| 202,197 | Apr. 09, 1878 | B.M. Sherman | Improvement in lifting-jacks | wagon and cart jacks |
| 336,793 | Feb. 23, 1886 | T.L. Chapman | Lifting Jack | screw jacks |
| 364,373 | Jun. 07, 1887 | M. Reisch | Jack Screw | jack screws |
| 461,643 | Oct. 20, 1891 | H.W. Robie | Screw-jack | screw jacks |
| 614,804 | Nov. 22, 1898 | C.E. Francis | Implement for operating screws | veneer machines |
| 661,488 | Nov. 13, 1900 | P. Broadbooks | Combination Clamp and Lifting Jack | bar and pipe clamps |
| 788,716 | May 02, 1905 | F.E. Walden, R.A. Hammond | Worm Gearing | vise mechanisms |
| 924,692 | Jun. 15, 1909 | H.A. Schatz | Lifting Jack | jack screws |
| 1,272,589 | Jul. 16, 1918 | W.A. Whitney | Ball Bearing Jack | jack screws |
| 1,395,945 | Nov. 01, 1921 | A.E. Clements | Combined Jack and Puller | jack screws |
| 1,417,254 | May 23, 1922 | D.C. Klausmeyer | Safety Lifting Jack | jack screws |
| 1,573,551 | Feb. 16, 1926 | D.C. Klausmeyer | Peep Hole for Threads | radial drill presses |
| 1,574,331 | Feb. 23, 1926 | F.H. Wilder | Screw jack | screw jacks |
| 1,919,150 | Jul. 18, 1933 | L.F. Nenninger | Milling Machine | milling machines |
| 2,078,192 | Apr. 20, 1937 | R.G. Ellis, J.F. Buhr | Tool Holder | drill press accessories |
