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| Patents for Stark Tool Co. | |||||
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| Number | Date | Patentee | Title | Type | |
| 47,997 | May 30, 1865 | J. Stark | Turning Lathe | metal lathes | |
| 141,824 | Aug. 12, 1873 | J. Stark | Improvement of Watchmakers Lathe Chucks | metal lathe chucks | |
| 388,927 | Sep. 04, 1888 | J. Stark | Anti Friction Adjustable Bearing for Lathe Spindles | metal lathes | |