3 Free Artworks of Horseshoe Magnets

electrical installationscans from 'rankin kennedy1903/undescribed
Permanent magnet oscillographs (Rankin Kennedy, Electrical Installations, Vol II, 1909)
electrical installation1909
Motor generator (Rankin Kennedy, Electrical Installations, Vol V, 1903)
electrical installation1903
HistoireDesMétéores - p112, Jean-Édouard Dargent, 1870
illustrations from histoire des météoresjean-édouard dargent
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