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| Patents Granted on 1849-05-22 | |||||
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| Number | Date | Patentee | Title | Type | |
| 6,458 | May 22, 1849 | C. Carter | Boring and mortising machine | mortising machines | |
| 6,459 | May 22, 1849 | S. Wood, C.S. Beardsley | Hollow Plane with Adjustable Sole | plane beds | |
| 6,464 | May 22, 1849 | E. Bancroft | Improvement in mill-shafting | industrial machine shaft hangers | |
| 6,469 | May 22, 1849 | A. Lincoln | Buoying Vessels over Shoals | ||
| 6,470 | May 22, 1849 | W.H. Seymour | Machine for jointing staves | barrel making machines | |