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| Patents for W. R. Greenlaw | |||||
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| Number | Date | Patentee | Title | Type | |
| 590,836 | Sep. 28, 1897 | E.B. Hayes | Double planer and sander | sanding machines | |
| 590,888 | Sep. 28, 1897 | E.B. Hayes | Cutter-head for planing-machines | cutterheads | |