1 finding aid(s) found containing the word(s) Friis, Harald T. (Harald Trap), 1893-1976.

  1. Harald T. Friis papers, 1921-1976

    600 items ; 8 containers ; 5 linear feet. -- Manuscript Division, Library of Congress, Washington, D.C.


    Radio engineer and inventor. Correspondence and other papers relating to Friis's work on radio transmission, radio astronomy, and microwaves.