DE3174749D1 - Sound attenuator - Google Patents
Sound attenuatorInfo
- Publication number
- DE3174749D1 DE3174749D1 DE8282900235T DE3174749T DE3174749D1 DE 3174749 D1 DE3174749 D1 DE 3174749D1 DE 8282900235 T DE8282900235 T DE 8282900235T DE 3174749 T DE3174749 T DE 3174749T DE 3174749 D1 DE3174749 D1 DE 3174749D1
- Authority
- DE
- Germany
- Prior art keywords
- sound attenuator
- attenuator
- sound
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US06/245,903 US4421202A (en) | 1981-03-20 | 1981-03-20 | Sound attenuator |
PCT/US1981/001610 WO1982003248A1 (en) | 1981-03-20 | 1981-12-03 | Sound attenuator |
Publications (1)
Publication Number | Publication Date |
---|---|
DE3174749D1 true DE3174749D1 (en) | 1986-07-03 |
Family
ID=26765036
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DE8282900235T Expired DE3174749D1 (en) | 1981-03-20 | 1981-12-03 | Sound attenuator |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE3174749D1 (en) |
-
1981
- 1981-12-03 DE DE8282900235T patent/DE3174749D1/en not_active Expired
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS57200788A (en) | Attenuator | |
GB2102823B (en) | Sound deadening material | |
JPS57529A (en) | Acoustic connection gel | |
JPS57112199A (en) | Microphone | |
GB8331340D0 (en) | Active acoustic attenuators | |
GB2109186B (en) | Amplifier | |
GB2110901B (en) | Electronstatic transducer | |
JPS57185753A (en) | Carrirer reproducer | |
JPS57178855A (en) | Acoustic board | |
JPS57198307A (en) | Sound arrester | |
ZA811297B (en) | Wall-plug | |
JPS57162807A (en) | Amplifier | |
GB2094099B (en) | Loudspeaker | |
GB2095018B (en) | Sound reproducing devices | |
DE3265563D1 (en) | Switching amplifier | |
GB2071249B (en) | Wall-plug | |
GB2112992B (en) | Sound reproducing device | |
DE3276146D1 (en) | Loudspeaker | |
GB2112240B (en) | Amplifier | |
JPS57178405A (en) | Amplifier | |
JPS57136693A (en) | Sound plate and making thereof | |
JPS57180211A (en) | Amplifier | |
GB2107154B (en) | Acoustic coupler | |
DE3174749D1 (en) | Sound attenuator | |
JPS5752297A (en) | Speaker unit |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
8364 | No opposition during term of opposition | ||
8339 | Ceased/non-payment of the annual fee |