Construction of master mechanical oscillator for testing seismic recorders and other allied apparatus

Author:	Lee, Frederick W.
Additional Authors:	Irland, George Allison,
Year:	1932
Document Type:	USBM
Issuing Agency:	U.S. Dept. of the Interior, Bureau of Mines,
SUDOC:	C 22.5:518
Series:	Technical paper / United States Department of the Interior, Bureau of Mines ;
Report Number:	518
Subjects:	Seismometry
	Vibration
	Oscillators, Electric
Link:	https://hdl.handle.net/2027/mdp.39015077315037