LEADER 01803oam  2200517   450 
001 9910716932003321
005 20211118112937.0
035   $a(CKB)5470000002526878
035   $a(OCoLC)1154792856
035   $a(EXLCZ)995470000002526878
100   $a20200519d1939      ua             0
101 0 $aeng
135   $aurbn|||||||||
181   $ctxt$2rdacontent
182   $cc$2rdamedia
183   $acr$2rdacarrier
200 10$aTandem air propellers /$fby E.P. Lesley
210  1$aWashington, [D.C.] :$cNational Advisory Committee for Aeronautics,$d1939.
215   $a1 online resource (10 pages, 16 unnumbered pages) $cillustrations
225 1 $aTechnical note / National Advisory Committee for Aeronautics ;$vNo. 689
300   $a"February 1939."
300   $aNo Federal Depository Library Program (FDLP) item number.
320   $aIncludes bibliographical references (page 10).
606   $aPropellers, Aerial
606   $aPropellers, Aerial$xTesting
606   $aPropellers$xDesign and construction
606   $aPropellers, Aerial$2fast
606   $aPropellers, Aerial$xTesting$2fast
606   $aPropellers$xDesign and construction$2fast
615  0$aPropellers, Aerial.
615  0$aPropellers, Aerial$xTesting.
615  0$aPropellers$xDesign and construction.
615  7$aPropellers, Aerial.
615  7$aPropellers, Aerial$xTesting.
615  7$aPropellers$xDesign and construction.
700   $aLesley$b E. P$g(Everett Parker),$f1874-1945,$01391105
712 02$aUnited States.$bNational Advisory Committee for Aeronautics,
801  0$bTRAAL
801  1$bTRAAL
801  2$bOCLCO
801  2$bOCLCF
801  2$bGPO
906   $aBOOK
912   $a9910716932003321
996   $aTandem air propellers$93469474
997   $aUNINA