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Materials and Methods of Construction in Light Structures (1929)
NASA Technical Reports Server (NTRS) · leaf 17
II.A.C.A. Technical KenorancLum ITo.515 Figs.1,8,9 100 8_4 82 ii! a 72 56 Fig. 9NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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