BS 1019:1949

Photographic lenses. Definitions, methods and accuracy of marking.

NORMA vydána dne 22.9.1949

The information about the standard:

Designation standards: BS 1019:1949
Note: NEPLATNÁ
Publication date standards: 22.9.1949
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategorie: Technické normy BS