DE3174749D1 - Sound attenuator - Google Patents

Sound attenuator

Info

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
Application number
DE8282900235T
Other languages
German (de)
Inventor
Robert W Hoy
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Peabody ABC Corp
Original Assignee
Peabody ABC Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Priority claimed from US06/245,903 external-priority patent/US4421202A/en
Application filed by Peabody ABC Corp filed Critical Peabody ABC Corp
Application granted granted Critical
Publication of DE3174749D1 publication Critical patent/DE3174749D1/en
Expired legal-status Critical Current

Links

DE8282900235T 1981-03-20 1981-12-03 Sound attenuator Expired DE3174749D1 (en)

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)

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Legal Events

Date Code Title Description
8364 No opposition during term of opposition
8339 Ceased/non-payment of the annual fee