| Patents for Charles Leon Libby |
Patents 1 -
6
of 6
      |
| Number | Date | Patentee | Title | Type |
| 406,413 | Jul. 02, 1889 | C.L. Libby | Turret Lathe | turret lathes |
| 442,230 | Dec. 09, 1890 | C.L. Libby | Chuck for Screw Machines | screw machines |
| 443,775 | Dec. 30, 1890 | C.L. Libby | Attachment for Turret Lathes | metal lathe accessories and attachments |
| 455,344 | Jul. 07, 1891 | C.L. Libby | Lathe Head | turret lathes |
| 511,736 | Dec. 26, 1893 | C.L. Libby | Taper Attachment and Feed Mechanism for Vertical Boring Mill | vertical boring mills |
| 514,719 | Feb. 13, 1894 | C.L. Libby | Boring-Mill | vertical boring mills |
