| All Patents in class 92/72 |
Patents 1 -
7
of 7
      |
| Number | Date | Patentee | Title | Type |
| 233,231 | Oct. 12, 1880 | J.G. Benton, H.F. Gaskill | Oil Pump | oilfield machinery |
| 364,225 | Jun. 07, 1887 | H.E. Doggett | Steam Motor | steam engines |
| 540,757 | Jun. 11, 1895 | F.W. Ofeldt | Vapor Engine | internal combustion engines |
| 811,520 | Jan. 30, 1906 | E. Reynolds | Steam-engine | steam engines |
| 1,385,134 | Jul. 19, 1921 | F.A. Jimerson | Bit-chuck retainer | drill press chucks |
| 1,566,095 | Dec. 15, 1925 | F.A. Jimerson | Fluid-actuated rotary machine | pneumatic tools |
| 1,964,245 | Jun. 26, 1934 | H.F. MacMillin, E.K. Benedek | Constant Delivery Radial Piston Pump | hydraulic pumps |
