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Fire prevention on aircraft (1931)
NASA Technical Reports Server (NTRS) · leaf 24
N.A.C.A. Technical Hemorandum No4 628 Pigs.1,8,9,10 … Pig»8 Flame-proof passage throiigh fire wall. Fig.9 Fig.10 Figs.9,10 Movable fittings for passage of double fuel pipe through fire wallNASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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