Mechanical drawing : a manual for teachers and students (1902)
Cross, Anson Kent · Boston : Ginn & Co. · leaf 26
■A-A … iS- MECHANICAL DRAWING. is the centre of the required arc, and lines from 5 to 7- and from5 to J give 6 and 7, the points of contact of the arc and circles Aand B. Problem 25.
Mechanical drawing
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