JPS53140852A - Soundproof ventilating hole - Google Patents
Soundproof ventilating holeInfo
- Publication number
- JPS53140852A JPS53140852A JP5444077A JP5444077A JPS53140852A JP S53140852 A JPS53140852 A JP S53140852A JP 5444077 A JP5444077 A JP 5444077A JP 5444077 A JP5444077 A JP 5444077A JP S53140852 A JPS53140852 A JP S53140852A
- Authority
- JP
- Japan
- Prior art keywords
- ventilating hole
- soundproof ventilating
- soundproof
- hole
- ventilating
- 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.)
- Granted
Links
Landscapes
- Ventilation (AREA)
- Duct Arrangements (AREA)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5444077A JPS53140852A (en) | 1977-05-13 | 1977-05-13 | Soundproof ventilating hole |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP5444077A JPS53140852A (en) | 1977-05-13 | 1977-05-13 | Soundproof ventilating hole |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS53140852A true JPS53140852A (en) | 1978-12-08 |
JPS5723863B2 JPS5723863B2 (en) | 1982-05-20 |
Family
ID=12970756
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP5444077A Granted JPS53140852A (en) | 1977-05-13 | 1977-05-13 | Soundproof ventilating hole |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS53140852A (en) |
Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5355648A (en) * | 1976-10-30 | 1978-05-20 | Naka Tech Lab | Noiseemuffled ventilator |
-
1977
- 1977-05-13 JP JP5444077A patent/JPS53140852A/en active Granted
Patent Citations (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5355648A (en) * | 1976-10-30 | 1978-05-20 | Naka Tech Lab | Noiseemuffled ventilator |
Also Published As
Publication number | Publication date |
---|---|
JPS5723863B2 (en) | 1982-05-20 |
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