Mechanical drawing; a treatise on the drawing of mechanical and machine details (1920)
Jones, Franklin Day, 1879-1967 · New York, The Industrial press; [etc., etc.] · leaf 135
ING itself. Students of mechanical drawing are sometimes puzzledwhen attempting to read a drawing, because they expect everydrawing to conform exactly to certain rules, and forget thata draftsman may not always make a drawing which is theo-retically correct, if, by some variation from the usual…
Mechanical drawing
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