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