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| Patents for H. D. Smith and Company | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,159,621 | Nov. 09, 1915 | W.S. Thomson | Pliers and Similar Tool | pliers | |
| 1,177,738 | Apr. 04, 1916 | W.S. Thomson | Process of Assembling Pliers Members | pliers | |
| 1,192,021 | Jul. 25, 1916 | W.S. Thomson | End Cutting Pliers | pliers | |
| 1,216,886 | Feb. 20, 1917 | W.S. Thomson | Gas Pliers | pliers | |
| 1,243,010 | Oct. 16, 1917 | W.S. Thomson | Perfect Handle Valve Lifter | valve spring tools | |
| 1,677,572 | Jul. 17, 1928 | L.V. Walkley | Screw Driver | screwdriver handles | |