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| Patents for B. A. Brennan | |||||
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| Number | Date | Patentee | Title | Type | |
| 629,849 | Aug. 01, 1899 | E.E. Fitzgerald | Bandsaw mill | band sawmills | |
| 709,992 | Sep. 30, 1902 | A.G. Mather | Universal coupling | industrial machine shaft couplings | |
| 775,282 | Nov. 15, 1904 | R. Raddatz | Electric furnace | industrial furnaces | |
| 780,425 | Jan. 17, 1905 | G.M. Hinkley | Band-saw mill | band sawmills | |
| 788,801 | May 02, 1905 | W.H. Trout | Sawmill set-works | sawmill set works | |
| 811,520 | Jan. 30, 1906 | E. Reynolds | Steam-engine | steam engines | |