The Wire Saw in slate quarrying

Author:	Bowles, Oliver.
Year:	1930
Document Type:	USBM
Issuing Agency:	U.S. Bureau of Mines,
Series:	Technical paper / United States. Bureau of Mines ;
Report Number:	469
Subjects:	Quarries and quarrying
	Slate
Link:	https://hdl.handle.net/2027/mdp.39015077559527