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| Patents for Robert J. Northam | |||||
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| Number | Date | Patentee | Title | Type | |
| 725,124 | Apr. 14, 1903 | R.J. Northam | Wrench | pipe wrenches | |
| 953,434 | Mar. 29, 1910 | R.J. Northam | Tool Holder | tool holders | |