Art
J-GLOBAL ID:201602015163940579   Reference number:58A0057500

Tone Ringing and Pushbutton Calling.

軽快な呼出信号音発生器および押しボタン式呼出装置(ダイオードトランジスターフェライ〓コイルの組の電話機が試みられた)
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Material:
Volume: 37  Issue:Page: 339-360  Publication year: 1958 
JST Material Number: B0062A  ISSN: 0005-8580  Document type: Article
Country of issue: United States (USA) 
Terms in the title (5):
Terms in the title
Keywords automatically extracted from the title.

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