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| Patents for Robert Simpson | |||||
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| Number | Date | Patentee | Title | Type | |
| 21,769 | Oct. 12, 1858 | J.H. Mattison | Machine for chamfering and crozing barrels | barrel making machines | |
| 1,415,489 | May 09, 1922 | R. Simpson | Pocket Tape | tape measures | |