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