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  3. Technical standards BS
  4. Standard "BS 6450-7:1990"
WITHDRAWN BS 6450-7:1990 28.10.1990 preview

BS 6450-7:1990

Private branch exchanges for connection to public switched telephone networks run by certain public telecommunication operators. Specification for the procedure for in-service observation of PBXs undergoing type approval.



STANDARD published on 28.10.1990


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Price158.40 USD excl. VAT
158.40 USD

The information about the standard:

Designation standards: BS 6450-7:1990
Note: WITHDRAWN
Publication date standards: 28.10.1990
SKU: NS-74405
The number of pages: 14
Approximate weight : 42 g (0.09 lbs)
Country: British technical standard
Category: Technical standards BS

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