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| All Patents in class 72/398 | |||||
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| Number | Date | Patentee | Title | Type | |
| 133,636 | Dec. 03, 1872 | W.T. Farre | Improvement in machines for bending tubing | pipe and tube benders | |
| RE5,581 | Sep. 30, 1873 | W.T. Farre | Improvement in machines for bending tubing | pipe and tube benders | |
| 1,046,088 | Dec. 03, 1912 | P. Kruse | Machine for making can-bodies | can making machines | |
| 2,645,142 | Jul. 14, 1953 | O. Schwenzfeler | Spark Plug Adjusting Pliers | spark plug adjusting | |
| 2,670,643 | Mar. 02, 1954 | W.H. Clark | Spark Gap Adjusting Pliers | spark plug adjusting | |