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| Patents for Gleason Tool Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 605,249 | Jun. 07, 1898 | J.E. Gleason | Machine for forming gear-teeth | gear making machines | |
| 678,337 | Jul. 09, 1901 | J.E. Gleason, W. Gleason | Gear Planer | gear making machines | |