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| All Patents in class 30/90.4 | |||||
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| Number | Date | Patentee | Title | Type | |
| 572,808 | Dec. 08, 1896 | M. Killian | Tool For Miners' and Blasters' Use | pliers | |
| 669,721 | Mar. 12, 1901 | W.H. Bruce | Pliers or Pipe Tongs | pliers | |
| 1,129,310 | Feb. 23, 1915 | A.I. Platt | Paper Carton Opener | knives and cutters | |