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| All Patents of Type: pipe reamers | |||||
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| Number | Date | Patentee | Title | Type | |
| 93,824 | Aug. 17, 1869 | W. Humphreys | Improved Compound Tool for Water and Gas Pipes | pipe reamers | |
| 1,791,649 | Feb. 10, 1931 | W.W. Vosper | Pipe Reamer | pipe reamers | |