Concrete airship sheds at Orly, France. Part II (1925)
NASA Technical Reports Server (NTRS) · leaf 47
17.1*0»A, Technical Memorandum No.533 Figs.41 & 42 … Fig.42 Rotation of one of concrete girders, forming base of centering,on a temporary concrete support.
NASA Technical Reports Server (NTRS)
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