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| Patents for Mary Israel | |||||
| Number | Date | Patentee | Title | Type | |
| 907,142 | Dec. 22, 1908 | J.J. Grant, J.F. Fieg | Change-speed gear mechanism | automatic lathes | |
| 926,737 | Jul. 06, 1909 | J.J. Grant, J.F. Fieg | Automatic lathe | automatic lathes | |