Shōwa jūsannendo shiken kenkyū keika gaihō
Subtitle: Shōwa 14-nen 5-gatsu 17-nichi bu-shochō kaigi hōkoku jikō
Publisher: Mantetsu] Tetsudō Gijutsu Kenkyūjo
Published: 1939
Place of publication: [Dairen?
Language: jpn
Number of pages: 44
Subjects: Mantetsu Tetsudō Gijutsu Kenkyūjo; Railroads; Research
Other titles: Shōwa 13-nendo shiken kenkyū keika gaihō
Notes: Cover title.

Confidential document (stamped).