Two-leg shield hazards
By: Kenneth T. Howard, Marvin W. Nichols, Jr
Contributors: Nichols, Marvin W; United States. Mine Safety and Health Administration
Series: Program information bulletin -- no. P 94-23
Publisher: U.S. Dept. of Labor, Mine Safety and Health Administration
Published: 1994
Place of publication: Arlington, Va. (4015 Wilson Blvd., Arlington 22203-1984)
Language: eng
Format: Microform
Subjects: Longwall mining -- Safety measures; Coal mines and mining -- Safety measures
Notes: Caption title

Distributed to depository libraries in microfiche

"Issue date: JUL 15 1994."

Microfiche. [Washington, D.C.] : Supt. of Docs., U.S. G.P.O., [1995] 1 microfiche : negative