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Technical rule [CURRENT] Article is not orderable

ETR 001:1990-08

Integrated Services Digital Network (ISDN); customer access maintenance

German title
Diensteintegrierendes digitales Fernmeldenetz (ISDN); Wartung des Teilnehmeranschlusses
Publication date
1990-08
Original language
English
Pages
3
Publication date
1990-08
Original language
English
Pages
3

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