Button microphones and inset receivers for commercial telephone equipment. General specifications
NORM herausgegeben am 1.1.1987
Designation standards: GOST 7152-85
Publication date standards: 1.1.1987
The number of pages: 62
Approximate weight : 186 g (0.41 lbs)
Country: Russian technical standard
Kategorie: Technische Normen GOST
Implemented changes and corrections:
Amd. 7.88
Amd. 3.07