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Thanks for your comments. Accordingly, I have shortened the article in order to make it more comprehensive, an added some categories to make it easier to be listed with similar articles. Regards --Alfons Kifmann (talk) 15:17, 24 March 2013 (UTC)Alfons Kifmann
Lebus patent: I've searched both USPT and Google-Patent for the 1937 Lebus patent and there is no such item. Franklin Le Bus has a 1956 patent of that technology, US2741441. Is this the one that is meant? — Preceding unsigned comment added by Be at peace (talk • contribs) 17:45, 25 August 2016 (UTC)
1938 patent here https://www.google.com/patents/US2204938 Jgb2 (talk) 15:03, 4 January 2018 (UTC)