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Journal of the Association of Engineering Societies (1881)
Association of Engineering Societies (U.S.) · New York, [etc.] Board of Managers · leaf 308
264 ASSOCIATION OF ENGINEERING SOCIETIES. 30D. Nail in Oak. 40D. Nail in Oak. … 6od. Nail Shortened to 554 in- in N. P. 7 in. Nail in N. P. Fig. 2.Engineering
Internet Archive · Smithsonian Libraries · Public domain (published before 1931). Free to use for anything.
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