| All Patents in class 60/481 |
Patents 1 -
10
of 28
      |
| Picture | Number | Date | Patentee | Title |
 | 5,736X | Dec. 02, 1829 | D.H. Mason, M.W. Baldwin | Press, called Bramah's hydrostatic press |
 | 38,187 | Apr. 14, 1863 | J. Tangye | Improvement in hydraulic lifting-jacks |
 | 137,765 | Apr. 15, 1873 | R. Dudgeon | Improvement in hydraulic jacks |
 | 162,044 | Apr. 13, 1875 | E.M. Dudgeon | Improvement in hydraulic jacks |
 | RE6,786 | Dec. 07, 1875 | E.M. Dudgeon | Improvement in hydraulic jacks |
 | 219,555 | Sep. 09, 1879 | O.C. Woolson | Improvement in hydraulic-power machines |
 | 271,154 | Jan. 23, 1883 | J.C. Tanner | Hydraulic jack |
 | 297,975 | May 06, 1884 | R.H. Dudgeon | Hydraulic jack |
 | 302,070 | Jul. 15, 1884 | T.H. Watson | Hydraulic jack |
 | 330,759 | Nov. 17, 1885 | J. Weeks, H. Traver | Hydraulic jack |
