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| All Patents in class 418/247 | |||||
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| Picture | Number | Date | Patentee | Title | |
| 26,148 | Nov. 15, 1859 | H.C. Rice, Administrator, J.H. Hathaway, deceased (Estate of) | Rotary Steam Engine | ||
| 286,102 | Oct. 02, 1883 | A.B. Wood | Rotary Steam Engine | ||
| 647,015 | Apr. 10, 1900 | C.E. Miller | Rotary Steam Engine | ||
| 855,028 | May 28, 1907 | J.C. Walker | Rotary Engine | ||
 | 968,268 | Aug. 23, 1910 | A.C. Savidge | Rotary Engine | |