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Tesla Commutator for Dynamo-Electric Machines Patent Print - Golden Look Patent Title: Commutator For Dynamo-electric Machines Inventor...read more
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Tesla Commutator for Dynamo-Electric Machines Patent Print - Golden Look Patent Title: Commutator For Dynamo-electric Machines Inventor Name: Nikola Tesla Year Issued: January 26 1886 Item Number: 12421 Reprint of original Patent Patent is...