Projection lenses. Specifications
NORMA vydaná dňa 1.1.1981
Designation standards: GOST 3840-79
Publication date standards: 1.1.1981
The number of pages: 12
Approximate weight : 36 g (0.08 lbs)
Country: Russian technical standard
Kategória: Technické normy GOST
Implemented changes and corrections:
Amd. 12.81
Amd. 9.87