Anpōsen tsūshin densenro no kairyō ni tsuite (sono 1, sono 2)
By: Hirose Hajime, Uwagawa Chūichi, Haruki Shōichi
Contributors: Uwagawa, Chūichi; Haruki, Shōichi; Mantetsu Tetsudō Gijutsu Kenkyūjo
Series: Shiken hōkoku -- dai 205-gō; Shiken hōkoku (Mantetsu Tetsudō Gijutsu Kenkyūjo) -- dai 205-gō.
Publisher: Minami Manshū Tetsudō Kabushiki Kaisha Tetsudō Gijutsu Kenkyūjo
Published: 1940
Place of publication: Dairen-shi
Language: jpn
Number of pages: 20
Subjects: Telecommunication cables
Notes: Cover title.

Confidential document (stamped).