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| Patents Granted on 1861-03-19 | |||||
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| Number | Date | Patentee | Title | Type | |
| 31,697 | Mar. 19, 1861 | J. Brakeley | Machine for planing bark | bark processing machines | |
| 31,707 | Mar. 19, 1861 | L.O. Fairbanks | Beveling Fence | jointer gauges | |
| 31,722 | Mar. 19, 1861 | J.J. Lenoir | Air Engine | hot air engines | |
| 31,759 | Mar. 19, 1861 | W. Woodbury | Spring-tackle for the sheets of fore-and-aft-rigged sails | boats and ships | |
| 31,768 | Mar. 19, 1861 | W.H. Sullenberger | Improved method of hanging bandsaws | bandsaws | |