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| Patents for Thomas Downey | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 269,605 | Dec. 26, 1882 | E. Thomson | Dynamo Electric Machine | |
 | 281,416 | Jul. 17, 1883 | E. Thomson | Dynamo Electric Machine | |
 | 294,095 | Feb. 26, 1884 | E. Thomson | Electric Power Distribution System | |
 | 356,902 | Feb. 01, 1887 | E. Thomson | Armature for Dynamo Electric Machines | |