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Old 05-22-2012, 10:02 PM
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Nikola Tesla Patent 390414

"It is obviously only necessary to utilize them in Pairs or Sets to operate one of my converters by extending the segments of the commutators belonging to each Pair of Coils and causing a collecting brush to bear on the continuous portion of each segment. In this way two or more circuits could be taken off from the generator, each including one or more Pairs or Sets of Coils, as may be desired..."

Nikola Tesla, October 2nd 1888, Patent# 390414, "A Dynamo Electric Machine"
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