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| All Patents in class 91/328 | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,096 | Feb. 06, 1849 | I.L. Bennett | Piston-Valve Inclosed in the Steam-Cylinder | ||
| 385,580 | Jul. 03, 1888 | G.B. Snow | Steam Bell Ringer | steam apparatus | |
| 1,062,808 | May 27, 1913 | H. Tscherning | Apparatus for jarring and pressing granular materials | ||