BS 978:1941

Gears for clockwork mechanisms.

NORMA vydaná dňa 1.10.1941

The information about the standard:

Designation standards: BS 978:1941
Note: NEPLATNÁ
Publication date standards: 1.10.1941
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategória: Technické normy BS