"(corresponding article on Robert Thelen is at German Wikipedia -->deutsch)
Robert Thelen (23 March 1884, Nürnberg - 23 February 1968, Berlin) was a German aviation pioneer and ...
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designer.
He was a chief designer of Albatros Flugzeugwerke, responsible among other for Albatros C.I design.
He was the first person to give flying lessons to Melli Beese, the first female German pilot." - (en.wikipedia.org 30.07.2022)