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| Patents for E. F. Dowling | |||||
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| Number | Date | Patentee | Title | Type | |
| D19,629 | Jan. 28, 1890 | H.C. Marsh | Design for a miter-box | miter boxes | |
| 431,606 | Jul. 08, 1890 | H.E. Harbaugh, G.W. Midgley | Drilling-machine | drill presses | |
| 441,909 | Dec. 02, 1890 | L. Walkup | Pantograph | pantographs | |
| 462,397 | Nov. 03, 1891 | G. Dalin | Drilling-machine | drill presses | |