IEC - International Electrotechnical Commission - IEC 60117-9B:1971

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

revised
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Organization: IEC - International Electrotechnical Commission
Publication Date: 1 April 1971
Status: revised
Page Count: 2
ICS Code (Public information symbols. Signs. Plates. Labels): 01.080.10

Document History

IEC 60117-9B:1971
April 1, 1971
Supplement B - Recommended graphical symbols - Part 9: Telephony, telegraphy and transducers
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