JPS5442728B2 - - Google Patents
Info
- Publication number
- JPS5442728B2 JPS5442728B2 JP4131876A JP4131876A JPS5442728B2 JP S5442728 B2 JPS5442728 B2 JP S5442728B2 JP 4131876 A JP4131876 A JP 4131876A JP 4131876 A JP4131876 A JP 4131876A JP S5442728 B2 JPS5442728 B2 JP S5442728B2
- 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
Priority Applications (7)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4131876A JPS52124716A (en) | 1976-04-14 | 1976-04-14 | Noise controller |
US05/686,338 US4069768A (en) | 1975-05-28 | 1976-05-14 | Device for controlling a propagation direction of noise |
GB4977/79A GB1557778A (en) | 1975-05-28 | 1976-05-20 | Device for reducing noise |
GB20920/76A GB1560901A (en) | 1975-05-28 | 1976-05-20 | Device for reducing noise |
FR7616039A FR2312831A1 (en) | 1975-05-28 | 1976-05-26 | DEVICE FOR CONTROLLING THE DIRECTION OF NOISE AND ESTABLISHING A WEAKNESS ZONE |
DE2624026A DE2624026C3 (en) | 1975-05-28 | 1976-05-28 | Noise protection screen |
BR7700953A BR7700953A (en) | 1976-02-18 | 1977-02-16 | DEVICE TO CONTROL FLUID PROPAGATION DIRECTION |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4131876A JPS52124716A (en) | 1976-04-14 | 1976-04-14 | Noise controller |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS52124716A JPS52124716A (en) | 1977-10-20 |
JPS5442728B2 true JPS5442728B2 (en) | 1979-12-15 |
Family
ID=12605152
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4131876A Granted JPS52124716A (en) | 1975-05-28 | 1976-04-14 | Noise controller |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS52124716A (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS55113098A (en) * | 1979-02-26 | 1980-09-01 | Bridgestone Tire Co Ltd | Noise reducing device |
JPH0654436B2 (en) * | 1986-04-24 | 1994-07-20 | 松下電工株式会社 | Sound wave propagation direction control device |
US5121811A (en) * | 1989-01-27 | 1992-06-16 | Bridgestone Corporation | Noise reducing device for printer |
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1976
- 1976-04-14 JP JP4131876A patent/JPS52124716A/en active Granted
Also Published As
Publication number | Publication date |
---|---|
JPS52124716A (en) | 1977-10-20 |