Practical problems in mechanical drawing and blueprint reading (1921)
Sturtevant, Walter W. [from old catalog] · Minneapolis, Minn. : Practical problems co. · leaf 30
W\ 29 SECTIONAL VIEWS. Frequently drawings are required of objectsthat because of their construction require agreat number of dotted lines to show the loca-tion of hidden parts. Such drawings are usual-ly difficult to understand. Especially is thistrue if the dotted lines intersect. To add…
Blueprints · Mechanical drawing
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