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| Patents for Charles F. Milburn | |||||
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| Number | Date | Patentee | Title | Type | |
| 474,995 | May 17, 1892 | J.C. Crabbs, G.E. Byrkit, C.F. Milburn | Lathe for turning wagon-axles | pattern lathes | |
| 493,038 | Mar. 07, 1893 | J.C. Crabbs, G.E. Byrkit, C.F. Milburn | Machine for turning wooden axles | pattern lathes | |