Paul Renno Heyl (1872 in Philadelphia – 22 October 1961) was an American inventor, physicist,[1] and author.
- ^ "Obituary: Paul R. Heyl". Physics Today. 15 (2): 72. February 1962. doi:10.1063/1.3058040.
Paul Renno Heyl (1872 in Philadelphia – 22 October 1961) was an American inventor, physicist,[1] and author.