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| Patents for St. Johnsbury Tool Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 104,206 | Jun. 14, 1870 | I.J. Robinson | The Diamond Bevel | bevels | |
| 125,617 | Apr. 09, 1872 | H. Fairbanks, I.J. Robinson | Improvement in Carpenters' Adjustable Bevels | try squares | |
| 153,115 | Jul. 14, 1874 | I.J. Robinson | Improvement in processes for tempering the blades of squares | carpenter squares | |
| RE8,058 | Jan. 29, 1878 | I.J. Robinson | The Diamond Bevel | bevels | |