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| Patents for J. W. Johnson | |||||
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| Number | Date | Patentee | Title | Type | |
| 211,943 | Feb. 04, 1879 | W.L. Sweetland | Improvement in lathe-chucks | metal lathe chucks | |
| 216,615 | Jun. 17, 1879 | N.L. Holmes | Improvement in axle-skeins for vehicles | carriage maker | |