1

Damping for directional sound cancellation

Year:
1990
Language:
english
File:
PDF, 103 KB
english, 1990
2

Attenuation of sound waves

Year:
1987
Language:
english
File:
PDF, 118 KB
english, 1987
3

Methods and apparatus for reducing noise by cancellation

Year:
1987
Language:
english
File:
PDF, 119 KB
english, 1987
4

Attenuation of sound waves

Year:
1986
Language:
english
File:
PDF, 152 KB
english, 1986
6

Active control of sound waves

Year:
1980
Language:
english
File:
PDF, 128 KB
english, 1980
7

Active control of sound waves

Year:
1979
Language:
english
File:
PDF, 153 KB
english, 1979