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| Patents for Joseph A. Hirtz Sr. | |||||
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| Number | Date | Patentee | Title | Type | |
| 2,064,605 | Dec. 15, 1936 | J.A. Hirtz, Sr. | Bandsaw attachment for woodworking machines | bandsaws | |
| 2,064,606 | Dec. 15, 1936 | J.A. Hirtz, Sr. | Jigsaw attachment for woodworking machines | bandsaws | |