Field test of an automated temporary roof support (ATRS) on a low-coal, single fixed-head roof-bolting machine (squirmer) /

Bibliographic Details

Main Author:	Chislaghi, Charles T.
Corporate Author:	United States. Bureau of Mines
Other Authors:	Marshall, Thomas E.
Format:	Government Document Book
Language:	English
Published:	Pgh. [i.e. Pittsburgh], Pa. : U.S. Dept. of the Interior, Bureau of Mines, [1982]
Series:	Bureau of Mines technical progress report ; TPR 119.
Subjects:	Mine roof bolting. Coal-mining machinery.