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| Patents for Edward Greenwood Wrigley | |||||
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| Number | Date | Patentee | Title | Type | |
| GB-189,625,037 | Oct. 16, 1897 | W.A. Pearn, F. Pearn, E.G. Wrigley | Improvements in tools or machines for facing, turning, boring and otherwise cutting flanges on castings and for operating upon other articles | horizontal boring mills | |