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| Patents for Charles N. Bamburgh | |||||
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| Number | Date | Patentee | Title | Type | |
| 9,688 | Apr. 26, 1853 | T.J. Sloan | Machine for pointing and threading screw-blanks | ||
| 11,784 | Oct. 10, 1854 | J.W. Griffiths | Improvement in construction of ships | ||