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| All Patents in class 82/82 | |||||
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| Number | Date | Patentee | Title | Type | |
| 213,691 | Mar. 25, 1879 | H. Reichardt | Tool for Cutting Pipe | pipe cutters | |
| 374,151 | Nov. 29, 1887 | B. Gruhl | Circular Shears for Cutting Shells and Tubes | rotary cutters | |
| 700,118 | May 13, 1902 | H.W. Hathorn | Pipe or Tube Sawing Machine | pipe cutting machines | |