Art
J-GLOBAL ID:201602010781846336   Reference number:58A0056561

Direct Inward Dialing to PABX Extension Stations.

増設PABX局への直接呼出方式
Author (1):
Material:
Volume: 154  Issue:Page: 19-22  Publication year: 1958 
JST Material Number: E0224A  CODEN: TLPNA  Document type: Article
Country of issue: United States (USA) 
JST classification (5):
JST classification
Category name(code) classified by JST.
Terms in the title (2):
Terms in the title
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