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| All Patents in class 125/11.04 | |||||
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| Number | Date | Patentee | Title | Type | |
| 203,515 | May 07, 1878 | R.W. Wheeler | Spherical lathe | wood lathes | |
| 2,981,038 | Apr. 25, 1961 | E.V. Flanders | Method of Grinding Helical Forms | thread grinders | |