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Suggested methods of improving the telephone service

 

作者: W.Aitken,  

 

期刊: Journal of the Institution of Electrical Engineers  (IET Available online 1914)
卷期: Volume 52, issue 228  

页码: 320-328

 

年代: 1914

 

DOI:10.1049/jiee-1.1914.0021

 

出版商: IEE

 

数据来源: IET

 

 

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