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| Patents for George S. Lewis | |||||
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| Number | Date | Patentee | Title | Type | |
| 146,537 | Jan. 20, 1874 | G.S. Lewis | Improvement in machines for setting up staves in barrels | barrel making machines | |
| 173,952 | Feb. 22, 1876 | J.C. Herman, G.S. Lewis | Improvement in machines for crozing and chamfering barrels | barrel making machines | |
| 393,511 | Nov. 27, 1888 | S.D. Leland | Tap Driving Head | tap and die holders | |