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| Patents for Samuel J. Johnston | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 530,109 | Dec. 04, 1894 | S.J. Johnston | Carriage or Wagon Jack | |
 | 530,419 | Dec. 04, 1894 | S.J. Johnston | Combination tool | |
 | 601,147 | Mar. 22, 1898 | S.J. Johnston | Wrench Jack | |
 | 601,302 | Mar. 29, 1898 | S.J. Johnston | Combination-tool | |
 | 607,439 | Jul. 19, 1898 | S.J. Johnston | Wrench Jack | |
 | 674,735 | May 21, 1901 | S.J. Johnston | Combination tool (brace wrench) | |