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| Patents for David R. Smith | |||||
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| Number | Date | Patentee | Title | Type | |
| 103,653 | May 31, 1870 | T.C. Purington | Wrench | screw adjust wrenches | |
| 284,749 | Sep. 11, 1883 | D.R. Smith, J. McCreary | Machine for Radial Crimping | crimping machines | |
| 336,656 | Feb. 23, 1886 | D.R. Smith, J. McCreary | Machine for Radial Crimping | crimping machines | |