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| Patents for K. A. Darling | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 39,530 | Aug. 11, 1863 | T.T. Prosser | Improved steam-boiler | |
 | RE1,585 | Dec. 01, 1863 | T.T. Prosser | Improvement in steam-boilers | |