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| Patents for Carlos Coolidge | |||||
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| Number | Date | Patentee | Title | Type | |
| 20,495 | Jun. 08, 1858 | S.U. King | Bit to brace, device for attaching | braces | |
| 42,914 | May 24, 1864 | S.U. King | Improvement in boring-machines | portable timber mortisers | |