01557nam 2200433Ia 450 991071129660332120180711121001.0GOVPUB-C13-a52170ac0893590253e591268383db20(CKB)5470000002481051(OCoLC)959982886(OCoLC)995470000002481051(EXLCZ)99547000000248105120161006d1954 ua 0engtxtrdacontentcrdamediacrrdacarrierVisual Landing Aids Field Service Operation progress report for the period December 1, 1952 to November 30, 1953 /C.A. Douglas, J.W. Simeroth, J.E. DavisGaithersburg, MD :U.S. Dept. of Commerce, National Institute of Standards and Technology,1954.1 online resourceNBS report ;30461954.Contributed record: Metadata reviewed, not verified. Some fields updated by batch processes.Title from PDF title page.Includes bibliographical references.Visual Landing Aids Field Service Operation Douglas C. A1388332Davis J. E431352Douglas C. A1388332Simeroth J. W1397704United States.National Bureau of Standards.NBSNBSOCLCOOCLCQBOOK9910711296603321Visual Landing Aids Field Service Operation3459693UNINA