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| All Patents in class 92/255 | |||||
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| Number | Date | Patentee | Title | Type | |
| 132,267 | Oct. 15, 1872 | J.R. Eichenberger | Improvement in Reciprocating Steam Engines | steam engine pistons | |
| 660,398 | Oct. 23, 1900 | G.A. Sauer | Hydraulic press | hydraulic presses | |
| 1,632,708 | Jun. 14, 1927 | P.F. Lueth | Sawmill carriage | sawmill carriages | |
| 2,979,903 | Apr. 18, 1961 | L.R. Beck | Air-hydraulic apparatus | hydraulic apparatus | |
| 2,987,046 | Jun. 06, 1961 | N.F. Atherton | Ram Assemblage | ||