|
| Patents for E01F 8 - Arrangements for absorbing or reflecting air transmitted noise from road or railway traffic (2,607) |
|---|
| 08/16/1977 | US4042061 Cell-box-type noise barrier having large magnitude of transmission loss and noise insulating method | | 04/05/1977 | US4015682 Protecting system for roadway adjacent areas | | 10/05/1976 | US3983956 Noise reduction barrier | | 07/06/1976 | US3967693 Apparatus for dismissing or decreasing sound's energy | | 06/08/1976 | US3961682 Sound-absorbing wall element | | 04/06/1976 | US3948009 Sound insulating wall made from composite rubber material | | 02/03/1976 | US3936035 Sound damping curtain wall |
|