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current | 21:11, 3 March 2011 | 912 × 563 (42 KB) | Spinningspark | {{Information |Description=Pulvermacher's "hydro-electric chain". A kind of flexible voltaic pile intended for medical use. |Source=Dionysius Lardner, [http://books.google.co.uk/books?id=FzoDAAAAQAAJ&pg=PA288#v=onepage&q&f=true ''Electricity, magneti |
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