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| Patents for W. Buchanan | |||||
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| Number | Date | Patentee | Title | Type | |
| 744,963 | Nov. 24, 1903 | C.T. Frantz | Machinist's Protractor | protractors | |
| 1,033,188 | Jul. 23, 1912 | C.C. Mitchell | Dynamo-electric machine | electric motors | |