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| Patents for Thomas H. McQuown | |||||
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| Number | Date | Patentee | Title | Type | |
| 749,743 | Jan. 19, 1904 | T.H. McQuown | Speed-indicator | ignition systems | |
| RE12,273 | Oct. 11, 1904 | T.H. McQuown | Electric-circuit closer and breaker | ignition systems | |