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| Patents for James Doig | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,271,548 | Jul. 09, 1918 | J. Doig | Staple-driving machine | nailing machines | |
| 1,271,571 | Jul. 09, 1918 | W.F. Harriett | Box-nailing machine | nailing machines | |
| 1,335,563 | Mar. 30, 1920 | J. Doig | Box-nailing machine | nailing machines | |