Audels answers on blue print reading for mechanics and builders,
Graham, Frank Duncan,
Audels answers on blue print reading for mechanics and builders, by F. D. Graham. - New York, T. Audel & co. [c1941] - 8 p. l., 352 p. incl. front., illus., diagrs. 17 cm.
Chapter 10, "A.I.E.E. standards: standard symbols for electrical equipment of buildings" (p. 167-170) has special t.-p.
Blueprints.
720.284 / GRH
Audels answers on blue print reading for mechanics and builders, by F. D. Graham. - New York, T. Audel & co. [c1941] - 8 p. l., 352 p. incl. front., illus., diagrs. 17 cm.
Chapter 10, "A.I.E.E. standards: standard symbols for electrical equipment of buildings" (p. 167-170) has special t.-p.
Blueprints.
720.284 / GRH