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| 040 | _cLIBRARY | ||
| 082 | _a621.3132 LAN | ||
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_98658 _a Langsdorf, Alexander S. |
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_aPrinciples of direct-current machines _c Alexander S. Langsdorf |
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_98655 _aElectrical engineering _xEE |
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_2ddc _cBK |
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_c66118 _d66118 |
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