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Heinrich Daniel Ruhmkorff |  | ||
Hannover
(Allemagne) 15.January.1803 Paris 20.December.1877
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| 1851 Spools of Ruhmkorff | ||||
Researchers
already producer of electromechanical measuring instruments of high
quality. In 1851 produces an apparatus (Take the name of
Ruhmkorff spool), which allows to obtain high tensions on the secondary
having low voltages on admission 'primary. |  | |||