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| Patents for John J. Hill | |||||
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| Number | Date | Patentee | Title | Type | |
| 71,387 | Nov. 26, 1867 | J.J. Hill | Improvement in Clamps for Planking Ships' Sides or Floors | ||
| 362,490 | May 10, 1887 | W.E. Dodd, J.J. Hill, C.W. Campbell | Reel for Displaying and Measuring Dry Goods | display racks and reels | |