Inside Out Library
Industrial drawing and geometry; an introduction to various branches of technical drawing (1911)
Spooner, Henry John, 1856- · London, New York [etc.] Longmans, Green, and co. · leaf 77
REDUCTION OF riGtJEES. Fee Pig. 174.—First method. B6, and produce the lines to meet in P. … Fig. 175.—Second method.Mechanical drawing · Geometrical drawing
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