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| Patents for E. D. Mellen | |||||
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| Number | Date | Patentee | Title | Type | |
| 648,689 | May 01, 1900 | L. Hutchinson | Igniting Device for Gas-Engines | ignition systems | |
| 657,760 | Sep. 11, 1900 | I.H. Davis | Electric Igniter for Explosive-Engines | ignition systems | |