Mechanical drawing for industrial and high schools (1915)
Leeds, Charles Carley, 1870- · New York, D. Van Nostrand company · leaf 50
Fig. 4 … D N E \/ 3-^\—Z^ :\\ AFig. 3 -X J B x\ s F «. Class Industrial mami John HCRotxrr+s DAT£ Dec. IS-06. The Carnegie: Institute of Technology PITTSBURGH, PA. The Ellipse: ocalc Full Size cws.Afa. C-IOIA LESSON No. 22. METHOD OF HOLDING PEN.—In learning to trace, one ofthe first problems which…
Mechanical drawing
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