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| Patents for Frederick C. Williams | |||||
| Number | Date | Patentee | Title | Type | |
| 291,253 | Jan. 01, 1884 | F.C. Williams | Machine for Spinning Metals | metal spinning machines | |
| 506,961 | Oct. 17, 1893 | F.C. Williams | Tap Wrench | tap wrenches and die stocks | |