Measuring instruments of film length. Assumed perforation. Gear ratios
NORMA vydána dne 1.1.1977
Designation standards: GOST 8910-75
Publication date standards: 1.1.1977
The number of pages: 5
Approximate weight : 15 g (0.03 lbs)
Country: Russian technical standard
Kategorie: Technické normy GOST