Wallis, Rolland S. [from old catalog], Iowa state college of agriculture and mechanic arts, Ames. Dept. of engineering extension. [from old catalog] · Ames, Iowa, Engineering extension department, Iowa state college · leaf 47
Fig. 56.—Auxiliary projections. K XV i^^g a v —Cutting Plane (a) 1/ ?Hjecf (b) (Front portion removed) Fig. 57.—Sectional views. 7 ; • 1 Section A-A (c) 44
Mechanical drawing
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