Noise Canceling Headset—an Active Ear Defender
Simshauser, E. D., Meeker, W. F., Balakrishnan, A. V.Volume:
28
Language:
english
Journal:
The Journal of the Acoustical Society of America
DOI:
10.1121/1.1905083
Date:
July, 1956
File:
PDF, 223 KB
english, 1956