Sullivan, Christine [Gordon]. [from old catalog] · New York, Cincinnati [etc.] American book company · leaf 56
Side View Plan w Fig. 87. ^ MECHANICAL DEVICES, 51 Exercise i.(Fig. %Z), LESSON XX.MECHANICAL DEVICES. Elevation and plan of hexagonal nut and washer Elevation. … Fig. 88. 52 ELEMENTS OF MECHANICAL DRAWING,
Mechanical drawing
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