sentences:  Friis received the IRE Morris N. Liebmann Award in 1939, the IRE Medal of Honor (now the IEEE Medal of Honor) in 1955, the Valdemar Poulsen Gold Medal of the in 1956, the Stuart Ballantine Medal from the Franklin Institute in 1958 and the Mervin Kelly Award of the IEEE in 1964.The papers of Harald Trap Friis span the years 1921-1976.These documents are available to the public and are maintained at the Manuscript Division, Library of Congress, Washington, D.C.