Summary

電話回線中に挿入せらるゝ器具、機械に基因する通話損に就て

小川一清 荒川利雄 

Vol.1 No.9 pp.183-224

Publication Date:1917/09/01

Online ISSN:2188-2355

Print ISSN:0913-5693

Type of Manuscript:Speech

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Online ISSN:2188-2355