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| Patents for A. J. Wilkinson | |||||
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| Number | Date | Patentee | Title | Type | |
| 271,401 | Jan. 30, 1883 | M.M. Barnes | Micrometer Indicating Gage | ||
| 280,339 | Jul. 03, 1883 | M.M. Barnes | Micrometer Calipers | micrometers | |