| All Patents in class 91/449 | 
| Patents 1 - 
					6
					of 6 
       | 
| Number | Date | Patentee | Title | Type | 
| 651,502 | Jun. 12, 1900 | E.E. Fitzgerald | Sawmill Set-Works | sawmill set works | 
| 1,033,280 | Jul. 23, 1912 | E.F. Williams, L. Skinner | Steam Engine | steam engines | 
| 1,566,095 | Dec. 15, 1925 | F.A. Jimerson | Fluid-actuated rotary machine | pneumatic tools | 
| 1,686,245 | Oct. 02, 1928 | H.G. Mueller | Reciprocating Steam Engine | steam engines | 
| 1,990,052 | Feb. 05, 1935 | A.M. Sosa | Fluid actuated drill feed | radial drill presses | 
| 3,043,275 | Jul. 10, 1962 | H.W. Reid, Jr. | Device for Control of Fluid Flow Rate | hydraulic apparatus |