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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 68
, 1 i ; ; ; i 1 ; i -A ^ ^\ ^-^ ^ ^ 7^_ r i \ ^ ^ ^--^ >| \) \] U ~T J ! 1 ! 1 1 / 1 1 ! ■- E / o 7 9i 7 ./I 5 ^ai SUPPORT ///V^Z^ 66Blueprints · Mechanical drawing
Internet Archive · Library of Congress · Public Domain Mark 1.0. Free to use for anything.
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