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| Patents for James G. Smith | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 354,359 | Dec. 14, 1886 | J.C. Spencer | Handle for screw-drivers and other tools | |
 | 373,100 | Nov. 15, 1887 | J.G. Smith | Protractor and Circle Scribing Attachment for Rulers | |
 | 380,360 | Apr. 03, 1888 | J.G. Smith, J.C. Spencer | Combined Rule, Square, Bevel, Calipers, &c. | |
 | 913,172 | Feb. 23, 1909 | J.C. McGregor, J.G. Smith | Breast-drill | |
 | 1,399,631 | Dec. 06, 1921 | C.A. Lofdahl, C.J. Lofdahl | Plane-Scraper | |