電磁通信工事業{e51b28}{42202f}{1f631b}{243121}{515b21}{5f414b}{343521}{682e21}{4d4921}{527821}{452d21}{3a6721}{3a6d21}{3b501b}{28422e}
By: henshū Rōdōshō Shokugyō Anteikyoku
Series: Shokumu kaisetsu -- dai 26-shū
Publisher: Rōdōshō Shokugyō Anteikyoku
Published: 1950
Place of publication: Tokyo]
Language: jpn
Number of pages: 154
Subjects: Telecommunication; Job descriptions; Employees; Vocational qualifications
Other titles: Denji tsushin kojigyō
Notes: Cover title.