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| All Patents in class 122/160 | |||||
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| Number | Date | Patentee | Title | Type | |
| 8,212X | May 21, 1834 | L. Burnell | Boilers for steam engines | stationary boilers | |
| 172,557 | Jan. 25, 1876 | F. Collignon | Steam Boiler | stationary boilers | |