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| All Patents of Type: transformers | |||||
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| Number | Date | Patentee | Title | Type | |
| 1,145,551 | Jul. 06, 1915 | J. Burke | Transformer | transformers | |
| 1,427,783 | Sep. 05, 1922 | J. Burke | Air-cooled transformer | transformers | |
| 1,540,789 | Jun. 09, 1925 | C.M. McCord | Testing transformer | transformers | |
| 2,162,329 | Jun. 13, 1939 | E.J. Dillman | Transformer Relay Unit | transformers | |
| 3,546,570 | Dec. 08, 1970 | T.B. Bullock | Method for Driving Controlled Currents Through the Stator Windings of a Position Measuring Transformer | transformers | |