Design of a quiet rock drill
Subtitle: a feasibility study using principles of leavell Pavement Breaker
By: by Floyd R. Anderson [and] Nisar Shaikh.
Contributors: Shaikh, Nisar.; United States. Bureau of Mines.
Series: Bureau of Mines open file -- report 162-77
Publisher: National Technical Information Service; Microinfo [distributor]
Published: 1977
Place of publication: Springfield, Va; Alton, Hants
Language: eng
Notes: PB274402.

'Prepared for Bureau of Mines' - cover.