Petroleum industry safety standards.
Edition: 1946 ed.
Series: Oklahoma. Dept. of labor. Book no. 11-A
Published: 1946
Place of publication: [Oklahoma City
Language: eng
Number of pages: 130
Subjects: Petroleum industry and trade -- Safety measures.
Notes: "Departmental publications": p. 130.
At head of title: State of Oklahoma, Dept. of labor, Oklahoma City ... Bureau of factory inspection.