01404oam 2200409 450 991071405390332120201112134833.0(CKB)5470000002507107(OCoLC)1136490014(EXLCZ)99547000000250710720200116d1930 ua 0engurbn|||||||||txtrdacontentcrdamediacrrdacarrierIdentification of aircraft tubing by Rockwell test /by Horace KnerrWashington, [D.C.] :National Advisory Committee for Aeronautics,1930.1 online resource (8 pages, 3 unnumbered pages) illustrationsTechnical notes / National Advisory Committee for Aeronautics ;No. 342"June, 1930."No Federal Depository Library Program (FDLP) item number.Tubes, SteelTestingTubes, SteelTestingfastTubes, SteelTesting.Tubes, SteelTesting.Knerr Horace C(Horace Calvin),1888-1404929United States.National Advisory Committee for Aeronautics,TRAALTRAALOCLCOOCLCFGPOBOOK9910714053903321Identification of aircraft tubing by Rockwell test3480502UNINA