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| Patents for Peter C. Wortman | |||||
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| Number | Date | Patentee | Title | Type | |
| 93,790 | Aug. 17, 1869 | P.C. Wortman | Improvement in Feed-Water Heaters | feedwater apparatus | |
| RE8,216 | May 07, 1878 | P.C. Wortman | Improvement in Feed-Water Heaters | feedwater apparatus | |