Speech hearing aids trainers. General specification
NORMA vydána dne 1.7.1998
Designation standards: GOST R 51076-97
Note: NEPLATNÁ
Publication date standards: 1.7.1998
The number of pages: 53
Approximate weight : 159 g (0.35 lbs)
Country: Russian technical standard
Kategorie: Technické normy GOST