BS 161:1925

Tungsten filament electric lamps.

NORMA vydána dne 3.8.1927

The information about the standard:

Designation standards: BS 161:1925
Note: NEPLATNÁ
Publication date standards: 3.8.1927
Approximate weight : 300 g (0.66 lbs)
Country: British technical standard
Kategorie: Technické normy BS