大阪逓信局区内電信電話線路降雪被害概況
The Institute of Teregraph and Telephone Engineers of Japan
Vol.7 No.3 pp.186-190
Publication Date:1923/03/01
Online ISSN:2188-2355
Print ISSN:0913-5693
Type of Manuscript:Miscellaneous notes
Category:
Keyword:
---
Full Text:PDF(613.6KB)>>
Summary: