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| Patents for H. E. Richards | |||||
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| Number | Date | Patentee | Title | Type | |
| 29,942 | Sep. 04, 1860 | G. Williamson | Machine for chamfering veneers | veneer machines | |
| 30,660 | Nov. 13, 1860 | G. Williamson | Clamp for holding cylinders to be polished | work holding | |
| 31,070 | Jan. 01, 1861 | G. Williamson | Veneer-planer | veneer machines | |