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| Patents for William L. Ludwick | |||||
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| Number | Date | Patentee | Title | Type | |
| D151,853 | Nov. 23, 1948 | W.L. Ludwick | Hammer Head | hammers | |
| 2,505,332 | Apr. 25, 1950 | W.L. Ludwick | Scratch Awl or the Like | awls | |