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| Patents for John D. Gallagher | |||||
| Number | Date | Patentee | Title | Type | |
| 259,344 | Jun. 13, 1882 | E.W. Vanduzen | Lubricator for loose pulleys, &c. | lubricators | |
| 267,010 | Nov. 07, 1882 | H.R. Mathias | Excelsior-machine | excelsior machines | |