Crawshaw, Fred D. (Fred Duane), b. 1874, Phillips, J. D. (James David), 1869- joint author · Chicago, New York, Scott, Foresman and company · leaf 289
rent metals and by the sectioning of adja-cent parts at opposite angles. But even with this aid the differ-ent views must be compared carefully to check the first impres-sion gained of the form of each part and to make sure that nodetail has been overlooked. Each part of the object must…
Mechanical drawing
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