JPS5723863B2 - - Google Patents
Info
- Publication number
- JPS5723863B2 JPS5723863B2 JP5444077A JP5444077A JPS5723863B2 JP S5723863 B2 JPS5723863 B2 JP S5723863B2 JP 5444077 A JP5444077 A JP 5444077A JP 5444077 A JP5444077 A JP 5444077A JP S5723863 B2 JPS5723863 B2 JP S5723863B2
- Authority
- JP
- Japan
- 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
Landscapes
- Duct Arrangements (AREA)
- Ventilation (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 JPS53140852A (en) | 1978-12-08 |
| JPS5723863B2 true 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 |
|---|---|
| JPS53140852A (en) | 1978-12-08 |