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| Patents for Porter Saw Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 88,585 | Apr. 06, 1869 | G.H. Porter | Improved Process of hardening Steel | ||
| 111,792 | Feb. 14, 1871 | S.W. Valentine | Improvement in Methods of Attaching Handles to Saws | crosscut saw handles | |