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Working drawings and how to make and use them (1881)
Haupt, Lewis M[uhlenberg], 1844- [from old catalog] · Philadelphia, J. N. Stoddard & co. · leaf 94
p |r * 1— Elevation i im^^^m. || Section. _L 7-/, r i Planj (a) Fig. 20. (a> … FIGS. 22-2^ GENERAL PROPOSITIONS.Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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