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
Application number
JP4131876A
Other languages
Japanese (ja)
Other versions
JPS52124716A (en
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
Application filed filed Critical
Priority to JP4131876A priority Critical patent/JPS52124716A/en
Priority to US05/686,338 priority patent/US4069768A/en
Priority to GB4977/79A priority patent/GB1557778A/en
Priority to GB20920/76A priority patent/GB1560901A/en
Priority to FR7616039A priority patent/FR2312831A1/en
Priority to DE2624026A priority patent/DE2624026C3/en
Priority to BR7700953A priority patent/BR7700953A/en
Publication of JPS52124716A publication Critical patent/JPS52124716A/en
Publication of JPS5442728B2 publication Critical patent/JPS5442728B2/ja
Granted legal-status Critical Current

Links

JP4131876A 1975-05-28 1976-04-14 Noise controller Granted JPS52124716A (en)

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)

* Cited by examiner, † Cited by third party
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

Also Published As

Publication number Publication date
JPS52124716A (en) 1977-10-20

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