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| Patents for Charles L. Libby | |||||
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| Number | Date | Patentee | Title | Type | |
| 939,043 | Nov. 02, 1909 | C.L. Libby | Feed for lathes | turret lathes | |
| 939,722 | Nov. 09, 1909 | C.L. Libby | Tool-post for lathes | turret lathes | |
| 957,783 | May 10, 1910 | C.L. Libby | Tool-support for lathes | turret lathes | |
| 1,021,875 | Apr. 02, 1912 | C.L. Libby | Gearing | metal lathes | |