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| Patents for John E. Windle | |||||
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| Number | Date | Patentee | Title | Type | |
| 157,562 | Dec. 08, 1874 | J.C. Goodrich, J.E. Windle | Improvement in Bit-Gages | drill depth stops | |
| 390,936 | Oct. 09, 1888 | J.E. Windle | Bit-gage | drill depth stops | |