Integrated Services Digital Network (ISDN); circuit-mode 64 kbit/s unrestricted 8 kHz structured bearer service category; service description; english version ETS 300108:1992
Methods of measurement for radio transmitters; part 4: amplitude/frequency characteristics and non-linearity distortion in transmitters for radiotelephony and sound broadcasting
Plugs, Telephone (Type PJ-068) and Accessory Screws
发布日期:1978-08-30 实施日期:1985-06-27
Apparate mit einer oder mehreren Sonderfunktionen Zum Anschluss an bestimmte Oeffentliche Fernsprechnetze. Apparate mit Sperrvorrichtung fuer ausgehende Gespraeche Apparatus with one or more particular...
实施日期:1988-11-30
Health informatics. Personal health device communication. Device specialization. Body composition analyzer
发布日期:2012-11-30 实施日期:2012-11-30
实施日期:2006-07-31
Verification Regulation of Tone telephone Analyzer
发布日期:1995-12-28 实施日期:1996-03-01
Electromechanical components for telephone switching system--Graphical symbols for operation sequence diagram
Specification for HF 12-channel transistorized carrier telephone equipment on an open-wire pair
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