Image: Coanda 1911 patent
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Description: Sketch of Henri Coanda's turbine-style propeller that he filed for patent in 1911. This sketch is taken from the US patent granted in 1914. An identical sketch was filed in the UK May 26, 1911. http://v3.espacenet.com/publicationDetails/originalDocument?CC=GB&NR=191112740A&KC=A&FT=D&date=19120118&DB=EPODOC&locale=en_gb
Title: Coanda 1911 patent
Credit: https://news.google.com/patents/about?id=e9VOAAAAEBAJ
Author: Henri Coanda
Permission: public domain
Usage Terms: Public domain
License: Public domain
Attribution Required?: No
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