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| Patents for L. C. Donn | |||||
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| Number | Date | Patentee | Title | Type | |
| 9,118 | Jul. 13, 1852 | R.L. Noblet | Shingle-machine | shingle machines | |
| 9,398 | Nov. 16, 1852 | C.L. Barnes | Expanding bit | adjustable drill bits | |