00782cam a22001691  4500082002800000100003300028245008700061260003900148300005800187500012400245526003700369650002300406710005500429942001200484999001900496952009700515  a720.284bGRHcL-12, P-21 aGraham, Frank Duncan,93901910aAudels answers on blue print reading for mechanics and builders,cby F. D. Graham.  aNew York,bT. Audel & co.c[c1941]  a8 p. l., 352 p. incl. front., illus., diagrs.c17 cm.  aChapter 10, "A.I.E.E. standards: standard symbols for electrical equipment of buildings" (p. 167-170) has special t.-p.  a0b0c0d720_284000000000000_GRH 0aBlueprints.9377252 aAmerican Institute of Electrical Engineers.945738  2ddccBK  c549195d549195  00102ddc4070aMCEbMCEd2014-09-18l0o720.284 GRHpMCE-30322r2014-09-18w2014-09-18yBK