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| Patents for John H. Redfield | |||||
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| Picture | Number | Date | Patentee | Title | |
 | RE4,390 | May 23, 1871 | L.R. Faught | Improvement in turning-lathes | |
 | 115,290 | May 30, 1871 | L.R. Faught | Improvement in hold-fasts for lathe-spindles | |
 | 115,291 | May 30, 1871 | L.R. Faught | Improvement in die-stocks for cutting screws | |