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| Patents for W. Blackstock | |||||
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| Number | Date | Patentee | Title | Type | |
| 221,900 | Nov. 18, 1879 | C.M. Miller | Traction Engine | steam traction engines | |
| 251,221 | Dec. 20, 1881 | W.P. Hale | Grain-binder | hay or straw binders | |