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| Patents for L. E. Witham | |||||
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| Number | Date | Patentee | Title | Type | |
| 784,771 | Mar. 14, 1905 | C.A. Cross, J. Adams | Pipe-Wrench | pipe wrenches | |
| 854,144 | May 21, 1907 | P. Broadbooks | Drill Bit | metalworking twist drills | |