
Focal distances of photographic, enlarging and projecting lenses
STANDARD published on 1.8.1985
Designation standards: STN 190020
Classification mark: 190020
Catalog number: 53937
Note: WITHDRAWN
Publication date standards: 1.8.1985
Approximate weight : 12 g (0.03 lbs)
Country: Slovak technical standard
Category: Technical standards STN