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ITU-T G Suppl. 4 (12/1972)

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Certain methods of avoiding the transmission of excessive noise between interconnected systems
Approval date: 1972-12-15
Approval process:WTSA
Status: In force
Maintenance responsibility: ITU-T Study Group 15
Further details: Patent statement(s)
Ed. ITU-T Recommendation Status Summary Table of Contents Download
1 G Suppl. 4 (12/1972) In force - - here