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 107
A/i|l|!l!i/iiirii|ii! D E F G Pig. 254.—Second step. B A … Pig. 255.—Third step. Pig. 256.—Complete pattern. Geometrical Patterns.—These branches of industry are concerned in covering or filling a given area with figures terminated bystraight lines. If it is a condition that all the figures should be regular, and have the same number of sides, there are…
Mechanical drawing · Geometrical drawing
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