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| Patents for R. Fitzgerald | |||||
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| Number | Date | Patentee | Title | Type | |
| 53,107 | Mar. 13, 1866 | L.W. Boynton | Improvement in machines for making skewers | specialty woodworking machines | |
| 53,374 | Mar. 20, 1866 | A. Hatch | Improvement in Lathes | metal lathe accessories and attachments | |
| 57,547 | Aug. 28, 1866 | C.M. Morris, I. Morris | Nut Wrench | wrench jaw components | |
| 66,028 | Jun. 25, 1867 | I. Judson | Improved hydraulic-pressure regulator | ||
| 79,965 | Jul. 14, 1868 | A.J. Fellows | Improvement in Tape Measures | tape measures | |