
Graphical symbols for electrical power, telecommunications and electronics diagrams. Symbols for topographical diagrams.
NORMA vydaná dňa 15.3.1970
Designation standards: BS 3939SECTION26:1970
Note: NEPLATNÁ
Publication date standards: 15.3.1970
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategória: Technické normy BS