Biblioteca SEGEMAR

Vista normal Vista MARC Vista ISBD

Mainiero, Richard J.

Use of sheathed explosive charges on longwalls / by Richard J. Mainiero and Lon D. Santis. - Washington, D.C. : U.S. Dept. of the Interior, Bureau of Mines, 1989. - 8 p. : ill. ; 27 cm. - Report of investigations ; 9294 . - Report of investigations (United States. Bureau of Mines) ; 9294. .

Includes bibliographical references.

LCCN: 89600272

Subjects--Topical Terms:
Coal mines and mining--Explosives--Testing.
Longwall mining.

LC Class. No.: TN23 TN803 / .U43 no. 9294

Dewey Class. No.: 622 s 622/.334

Gov. Doc. Class. No.: I 28.23: