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Practical problems in mechanical drawing and blueprint reading (1921)
Sturtevant, Walter W. [from old catalog] · Minneapolis, Minn. : Practical problems co. · leaf 25
5ELL CRANK 23 1—r .^i TtTTT Ttrrr r:^ i-r nioo i_2i. ©i B£IL CRANK^RILL 3- ^ H0LE5 … 24 r^l^ ^lOQBlueprints · Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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