Helmer Dahl

Helmer Hartmann Dahl (17 June 1908 – 29 March 1999) was a Norwegian electrical engineer and director of research at the Chr. Michelsen Institute.[1]

  1. ^ "Helmer Hartmann Dahl". Norwegian University of Science and Technology. Archived from the original on June 23, 2018. Retrieved February 1, 2018.