| All Patents in class 91/323 |
Patents 1 -
11
of 11
      |
| Number | Date | Patentee | Title | Type |
| 73,415 | Jan. 14, 1868 | H.O. Lothrop | Improvement in steam-engines cut-offs | steam engine governors |
| 75,034 | Mar. 03, 1868 | H.O. Lothrop | Improvement in steam-engines cut-offs | steam engine governors |
| 503,665 | Aug. 22, 1893 | J.B. Kelly | Steam-power crosscut-saw | drag saws |
| 803,621 | Nov. 07, 1905 | A.J. Patch | Pneumatic Hammer | pneumatic tools |
| 912,991 | Feb. 23, 1909 | J.F. Chuse | Steam Engine | steam engines |
| 1,112,489 | Oct. 06, 1914 | R.C. Stevens | Steam Engine | steam engines |
| 1,293,713 | Feb. 11, 1919 | H.A. Chuse | Steam Engine | steam engine valves |
| 1,886,212 | Nov. 01, 1932 | H.G. Mueller | Exhaust Valve Mechanism | steam engine valve gear |
| 1,927,526 | Sep. 19, 1933 | H.G. Mueller | Exhaust Valve Mechanism | steam engine valves |
| 1,938,762 | Dec. 12, 1933 | F.S. Haas | Grinding Machine | cylindrical grinders |
| 2,363,812 | Nov. 28, 1944 | J.L. Skinner | Engine Control Mechanism | steam engine governors |
