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| Patents for Marion E. Brown | |||||
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| Number | Date | Patentee | Title | Type | |
| 800,850 | Oct. 03, 1905 | F.A. Irland, D.H. Irland | Pipe Wrench | pipe wrenches | |
| 868,126 | Oct. 15, 1907 | C.W. Walker, J.E. Richards | Pipe Wrench | pipe wrenches | |
| 868,127 | Oct. 15, 1907 | J.E. Richards | Pipe Wrench | pipe wrenches | |
| 898,996 | Sep. 15, 1908 | G.P. Sprague | Nut Wrench | ratchet wrenches | |
| 898,997 | Sep. 15, 1908 | G.P. Sprague | Nut Wrench | nut wrenches | |