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| All Patents in class 92/69R | |||||
| Number | Date | Patentee | Title | Type | |
| 20,782 | Jul. 06, 1858 | J. Ericsson | Reciprocating Steam Engine | steam engines | |
| 206,460 | Jul. 30, 1878 | A. Kissell | Reciprocating Steam Engine | steam engine cylinders | |