2

Foam acoustic absorption member

Year:
1988
Language:
english
File:
PDF, 153 KB
english, 1988
3

Acoustic insulation board consisting of foam

Year:
1990
Language:
english
File:
PDF, 111 KB
english, 1990
7

Water suppression using a combination of hard and soft pulses

Year:
1969
Language:
english
File:
PDF, 366 KB
english, 1969