JPS53140852A - Soundproof ventilating hole - Google Patents

Soundproof ventilating hole

Info

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
Application number
JP5444077A
Other languages
Japanese (ja)
Other versions
JPS5723863B2 (en
Inventor
Takeshi Miyashiro
Yoshihide Sugimoto
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.)
Naka Technical Laboratory Co Ltd
Original Assignee
Naka Technical Laboratory Co Ltd
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 by Naka Technical Laboratory Co Ltd filed Critical Naka Technical Laboratory Co Ltd
Priority to JP5444077A priority Critical patent/JPS53140852A/en
Publication of JPS53140852A publication Critical patent/JPS53140852A/en
Publication of JPS5723863B2 publication Critical patent/JPS5723863B2/ja
Granted legal-status Critical Current

Links

Landscapes

  • Ventilation (AREA)
  • Duct Arrangements (AREA)
JP5444077A 1977-05-13 1977-05-13 Soundproof ventilating hole Granted JPS53140852A (en)

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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5355648A (en) * 1976-10-30 1978-05-20 Naka Tech Lab Noiseemuffled ventilator

Patent Citations (1)

* Cited by examiner, † Cited by third party
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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