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| Patents for William H. Whigham | |||||
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| Number | Date | Patentee | Title | Type | |
| 970,360 | Sep. 13, 1910 | W.H. Whigham | Angle guide attachment for boring-tools | ||
| 970,361 | Sep. 13, 1910 | W.H. Whigham | Bit-brace with angle guide attachment | ||