Art
J-GLOBAL ID:201602007967061125   Reference number:58A0056763

Telephone System Transmission Performance Objectives.

電話伝送の達成目標 (音量と回線損失の関係について)
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Material:
Volume: 77  Issue:Page: 307  Publication year: 1958 
JST Material Number: Z0000A  Document type: Unknown
Country of issue: Other (ZZZ) 
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