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| Patents for Thomas C. Dill | |||||
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| Number | Date | Patentee | Title | Type | |
| 412,023 | Oct. 01, 1889 | T.C. Dill | Key Seating Machine | key seating machines | |
| 938,304 | Oct. 26, 1909 | T.C. Dill | Gear Cutting Machine | gear making machines | |