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| Patents for Ralph W. Hall | |||||
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| Picture | Number | Date | Patentee | Title | |
 | 2,180,983 | Nov. 21, 1939 | R.W. Hall | Dynamo-electric machine | |
 | 2,307,588 | Jan. 05, 1943 | E.H. Jackson, R.W. Hall | Insulated electrical conductor | |