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| Patents for Isaac Hird | |||||
| Picture | Number | Date | Patentee | Title | |
![]() | 119,517 | Oct. 03, 1871 | I. Hird | Improvement in scroll-saws | |
![]() | 158,083 | Dec. 22, 1874 | I. Hird | Improvement in scroll-sawing machines | |