IEC 60117-9B:1971

Supplement B - Recommended graphical symbols - Part 9: Telephony, telegraphy and transducers

OEN:

IEC

Langue:

English

Code(s) de l'ICS:

01.080.10

Statut:

Révisé

Date de Publication:

1971-03-31

Numéro Standard:

IEC 60117-9B:1971