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| Patents for James Emerson | |||||
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| Number | Date | Patentee | Title | Type | |
| AI275 | Apr. 03, 1860 | J. Emerson | Ship's windlass | ||
| 262,211 | Aug. 08, 1882 | J. Emerson | Chuck for Centering and Securing Pulleys to Shafts | mandrels and arbors | |