Worthen, William Ezra, 1819-1897, [from old catalog] ed · New York, Appleton · leaf 561
Fig. 1300. 544 ENGINEERING DRAWING. … ENGINEERING DRAWING. 545 show both, but the figure is completed with a section of the other part, througha different plane. The following letters of reference and technical names of similar partsapply equally to all the figures : a, Sill. a, End-sill. &, Intermediate floor-timbers. &,…
Mechanical drawing
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