| Patents for Richard Dudgeon |
Patents 1 -
10
of 11
      |
| Picture | Number | Date | Patentee | Title |
 | 8,203 | Jul. 08, 1851 | R. Dudgeon | Portable hydraulic press |
 | 22,713 | Jan. 25, 1859 | R. Dudgeon | Hydraulic press |
 | 43,673 | Aug. 02, 1864 | R. Dudgeon | Drill |
 | 137,765 | Apr. 15, 1873 | R. Dudgeon | Improvement in hydraulic jacks |
 | 271,154 | Jan. 23, 1883 | J.C. Tanner | Hydraulic jack |
 | 330,759 | Nov. 17, 1885 | J. Weeks, H. Traver | Hydraulic jack |
 | 330,760 | Nov. 17, 1885 | J. Weeks | Hydraulic jack |
 | 334,206 | Jan. 12, 1886 | J. Weeks, H. Traver | Hydraulic jack |
 | RE10,865 | Sep. 13, 1887 | R.H. Dudgeon | Hydraulic jack |
 | 369,992 | Sep. 13, 1887 | O.H. Mechem | Hydraulic jack |
