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| Patents for George R. Houghton | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,000 | Jan. 02, 1849 | A.S. Macomber | Turning-lathe | wood lathes | |
| 495,239 | Apr. 11, 1893 | J.R. Bate, S.H. Shadbolt, G.R. Houghton, C.B. Houghton | Machine for cutting excelsior | excelsior machines | |