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DIN 45578-1:1987-02
Действует
Magnet systems for moving coil loudspeakers; definitions, dimensions, methods of measurement — 4 стр.
DIN EN 301437:2000-10
Действует
Terminal Equipment (TE) - Attachment requirements for pan-European approval for connection to the analogue Public Switched Telephone Networks (PSTNs) of TE supporting the voice telephony service in wich network addressing, if provided, is by means of Dual Tone Multi Frequency (DTMF) signalling (Endorsement of the English version EN 301437 V 1.1.1 (1999-06) as German standard) — 1 стр.