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| Patents for D. J. Brown | |||||
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| Number | Date | Patentee | Title | Type | |
| 115,600 | Jun. 06, 1871 | J.S. Crane, J.T. Gilmore | Improvement in Machines for Dressing Millstones | miller | |
| 390,807 | Oct. 09, 1888 | O. Schimansky | Machine for planing hoops | hoop making machines | |