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| All Patents in class 110/199 | |||||
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| Number | Date | Patentee | Title | Type | |
| 174,139 | Feb. 29, 1876 | W.J. Liddell | Improvement in furnaces for portable boilers | portable boilers | |
| 660,181 | Oct. 23, 1900 | H.C. Clay | Straw Burning Furnace | traction engine boilers | |