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| Patents for R. D. Smith | |||||
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| Number | Date | Patentee | Title | Type | |
| 871,958 | Nov. 26, 1907 | J. Roemer | Pipe Wrench | chain and strap wrenches | |
| CA-127,916 | Sep. 06, 1910 | F.D. Winkley | Pompe | piston pumps | |