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Keywords from Image Description:
PacinottiGrammescher Ring. PacinottiGrammescher Ring Bibliothek allgemeinen und praktischen Wissens fr Militranwrter Band III Deutsches Verlaghaus Bong Co Berlin Leipzig Wien Stuttgart Scan made by Kogo Public Domain because copyright expired PDold Dynamos History of electricity Early electric motors Znobe Gramme Antonio Pacinotti