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| All Patents in class 29/607 | |||||
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| Number | Date | Patentee | Title | Type | |
| 451,885 | May 05, 1891 | S.S. Wheeler | Method of constructing field-magnets of electric motors | electric motors | |
| 1,336,928 | Apr. 13, 1920 | F.L. Simmons | Method and Apparatus for Alining Work on V Blocks and the Like for Magnetic Chucks | magnetic chuck accessories | |
| 1,970,922 | Aug. 21, 1934 | F.L. Simmons | Magnetic Chuck | magnetic chucks | |