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| Patents for L. Thon | |||||
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| Number | Date | Patentee | Title | Type | |
| 845,773 | Mar. 05, 1907 | L.T. Gauss | Drill-chuck | drill chucks | |
| 912,689 | Feb. 16, 1909 | J.E. Kimble | Speed Regulating Device for Engine Governors | traction engine governors | |