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| All Patents in class 122/415 | |||||
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| Number | Date | Patentee | Title | Type | |
| 247,889 | Oct. 04, 1881 | N. Clute | Feed-Water Regulator | feedwater apparatus | |
| RE10,107 | May 09, 1882 | N. Clute | Feed-Water Regulator | feedwater apparatus | |