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| Patents for H. Buchanan | |||||
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| Number | Date | Patentee | Title | Type | |
| 233,471 | Oct. 19, 1880 | J. Naylor, Jr., D.H. Burrell | Machine for dressing and finishing barrel-hoops | hoop making machines | |
| 233,472 | Oct. 19, 1880 | J. Naylor, Jr., D.H. Burrell | Machine for cutting barrel-hoops from the log | hoop making machines | |