J-GLOBAL ID:201602004439296383   Reference number:58A0057095

Direct Distance Dialing, Part VIII.

独立直通遠距離通話 VIII 通話路について
Author (1):
Volume: 62  Issue:Page: 35-38  Publication year: 1958 
JST Material Number: H0525A  ISSN: 0040-263X  Document type: Article
Country of issue: United States (USA) 
Terms in the title (3):
Terms in the title
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