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 52
such cases the inch-marks are frequently omitted. 49 Various methods and devices of use in arranging and indicating dimen-sions are shown in Fig. 68. The satisfactory placing of the figures de-pends on the space available and the ingenuity of the draftsman. Nosystem of arranging dimensions is… … A&
Mechanical drawing
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