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| Patents for Robert B. Haines Jr. | |||||
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| Number | Date | Patentee | Title | Type | |
| 269,605 | Dec. 26, 1882 | E. Thomson | Dynamo Electric Machine | electric motors | |
| 468,519 | Feb. 09, 1892 | R.B. Haines, Jr. | Micrometer Gage | micrometers | |