Mechanical drawing : a manual for teachers and students (1902)
Cross, Anson Kent · Boston : Ginn & Co. · leaf 111
ctions instead of ellipses, hyperbolas, and parabolas. 187. When a cutting plane intersects twointersecting bodies, it gives upon each a cer-tain figure. These figures intersect in points,which must be points in the lines in whichthe solids intersect. This is illustrated by N and O. In N, avertical… … IN TERSE C TIONS. lO
Mechanical drawing
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