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| Patents for W. W. Middaugh | |||||
| Number | Date | Patentee | Title | Type | |
| 347,981 | Aug. 24, 1886 | H.C. Albee | Manufacture of broom-handles | broom making machinery | |
| 348,878 | Sep. 07, 1886 | H.C. Albee | Machine for finishing broom-handles | broom making machinery | |