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| Patents for Nicholls Mfg. Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 672,455 | Apr. 23, 1901 | M. Nicholls | Squares | carpenter squares | |
| 772,861 | Oct. 18, 1904 | A.W. Benskin | Try Square | bevels | |
| 1,008,261 | Nov. 07, 1911 | A.A. Harvie | Hardened Corners Process | carpenter squares | |