Numeral in center Indicates number of Standard 16 C.R Incandescent Brocket Outlet; Electric only. Numeral in center ... Bracket Outlet; Combination . icates At- 16 CP, Standard Incan- fescent Lamps and Z Gas Burners. Bracket ... Automatic Door Switch Outlet. ... Clock, Telephone, Bell or other Service , run under floor abovalt; I Kind of Service wonted ascertained by Symbol to-whieb line connects. ... Symbols for the diagrammatic representation of electrical 316 ENGINEERING DRAWING.
|Title||:||A Manual of Engineering Drawing for Students and Draftsment|
|Author||:||Thomas Ewing French|