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| Patents for Bretney Dust Collector Co. | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 397,048 | Jan. 29, 1889 | E. Bretney | Dust-collector | |
 | 400,391 | Mar. 26, 1889 | E. Bretney | Dust-collector | |
 | 408,074 | Jul. 30, 1889 | E. Bretney | Dust-collector | |