All Patents of Type: screw jacks |
Patents 1 -
8
of 8
|
Number | Date | Patentee | Title | Type |
336,793 | Feb. 23, 1886 | T.L. Chapman | Lifting Jack | screw jacks |
461,643 | Oct. 20, 1891 | H.W. Robie | Screw-jack | screw jacks |
601,451 | Mar. 29, 1898 | H.M. Stevenson | Lifting-jack | screw jacks |
610,044 | Aug. 30, 1898 | D. Glenn | Ball-bearing screw-jack | screw jacks |
1,089,703 | Mar. 10, 1914 | I.E. Hindman | Friction clutch for screw-jacks | screw jacks |
1,228,210 | May 29, 1917 | I.E. Hindman | Screw-jack | screw jacks |
1,574,331 | Feb. 23, 1926 | F.H. Wilder | Screw jack | screw jacks |
3,941,352 | Mar. 02, 1976 | N.J. White, R.H. Nehrig | Bumper screw jack | automobile and truck jacks |