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| All Patents in class 417/157 | |||||
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| Number | Date | Patentee | Title | Type | |
| 270,743 | Jan. 16, 1883 | W.A. Clarke | Exhaust-nozzle for steam-engines | steam engines | |
| 1,569,515 | Jan. 12, 1926 | A.G. Machesney | Locomotive Exhaust Nozzle Covering | steam locomotives | |