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Combined Beam-column Stresses of Aluminum-alloy Channel Sections (1939)
NASA Technical Reports Server (NTRS) · leaf 13
N.A.C.A* Technical Note No. 726 Figs. 3,4 … Figure 4.- Calibration of machine for compressive loads by use of Amsler block.NASA Technical Reports Server (NTRS)
Internet Archive · NASA Technical Reports · Public domain (US government work). Free to use for anything.
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