File:Savonius snow melter 1921.png

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Description
English: Patent drawing of Savonius' snow melter from 1921
Date
Source "Apparatus for melting snow and the like", US Patent 1125732, 19. Januar 1915
Author Sigurd Savonius

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current08:57, 17 November 2011Thumbnail for version as of 08:57, 17 November 2011843 × 498 (196 KB)XXLRay (talk | contribs)

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