改正工場法規ノ說明
By: Naimushō Shakaikyoku hen
Publisher: Sangyō Fukuri Kyōkai
Published: 1927
Place of publication: Tōkyō
Language: jpn
Subjects: Labor laws and legislation
Other titles: Kaisei kōjō hōki no setsumei; Kōjō hōki no setsumei