000 00375 a2200133 4500
082 _a621.303
_bAm3g
245 1 _aAMERICAN STANDARD GRAPHICAL SYMBOLS FOR ELECTRICAL DIAGRAMS
260 _aN. Y.
_bAmerican Standards Association
_c1962
300 _a65
650 _aElectric Engineering -- Terminology
650 _aSigns And Symbols
964 _gCIRC
997 _a59986 C
999 _c456169
_d456169