Summary

自動式電話交換に於けるSH式新型スイッチを用いた新回路の一考案に就て

小林金市郎 

Vol.19 No.7 pp.605-612

Publication Date:1935/07/01

Online ISSN:2188-2355

Print ISSN:0913-5693

Type of Manuscript:Contribution

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Online ISSN:2188-2355