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| Patents for A. N. Dobson | |||||
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| Number | Date | Patentee | Title | Type | |
| 503,528 | Aug. 15, 1893 | J.T. Cowley | Pattern Maker's Scale | shrink rules | |
| 537,792 | Apr. 16, 1895 | F. Mossberg, S.W. Wardwell, Jr. | Whistle | ||