2. Getting involved
  3. Standards Committees
  4. DKE
NA 022

DKE German Commission for Electrical, Electronic & Information Technologies of DIN and VDE

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Technical rule [CURRENT]

ITU-T Q.23
Technical features of push-button telephone sets

Title (German)

Technische Eigenschaften von Drucktasten-Fernsprechapparaten

Edition 1988-11
Original language English
Price On Request
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