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| Patents for Henry M. Bullis | |||||
| Number | Date | Patentee | Title | Type | |
| 374,730 | Dec. 13, 1887 | H.M. Bullis | Laying-out attachment for mortising-machines | mortising machines | |
| CA-28,490 | Feb. 07, 1888 | H.M. Bullis | Laying-out attachment for mortising-machines | mortising machines | |