| All Patents in class 92/82 |
Patents 1 -
9
of 9
      |
| Number | Date | Patentee | Title | Type |
| 540,490 | Jun. 04, 1895 | A.R. Holmes | Gas Engine | internal combustion engines |
| 1,348,256 | Aug. 03, 1920 | F.L. Wadsworth | Steam Engine | steam engines |
| 1,450,032 | Mar. 27, 1923 | J.W. Gardner | Compressor mechanism | air compressors |
| 1,544,644 | Jul. 07, 1925 | F.A. Jimerson | Fluid-actuated rotary tool | pneumatic tools |
| 1,591,539 | Jul. 06, 1926 | A. Levedahl | Crank-case venting means for pneumatic tools | |
| 1,591,540 | Jul. 06, 1926 | R.A. Norling, A. Levedahl | Crank-case venting means for pneumatic tools | |
| 2,045,024 | Jun. 23, 1936 | F.P. Thieman, H.J. Renken | Pump | piston pumps |
| 2,375,718 | May 08, 1945 | T.W. Ashcroft, W.G. Winkels | Crankcase Air-Pressure Control Means | internal combustion engines |
| 2,570,647 | Oct. 09, 1951 | G.A. Cormier | Power Cylinder and Piston With Leakage Control | hydraulic apparatus |
