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| All Patents in class 125/23.02 | |||||
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| Number | Date | Patentee | Title | Type | |
| 213,691 | Mar. 25, 1879 | H. Reichardt | Tool for Cutting Pipe | pipe cutters | |
| 909,182 | Jan. 12, 1909 | C.A. Hart | Device for Removing Burs from Pipes | pipe deburring tools | |