JPS586959Y2 - グレ−テイングを有する換気孔の自動開閉装置 - Google Patents

グレ−テイングを有する換気孔の自動開閉装置

Info

Publication number
JPS586959Y2
JPS586959Y2 JP2557579U JP2557579U JPS586959Y2 JP S586959 Y2 JPS586959 Y2 JP S586959Y2 JP 2557579 U JP2557579 U JP 2557579U JP 2557579 U JP2557579 U JP 2557579U JP S586959 Y2 JPS586959 Y2 JP S586959Y2
Authority
JP
Japan
Prior art keywords
water
ventilation hole
grating
shutter
packet
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.)
Expired
Application number
JP2557579U
Other languages
English (en)
Japanese (ja)
Other versions
JPS55126400U (enExample
Inventor
勝二郎 林
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.)
Osaka Gas Co Ltd
Takaoka Toko Co Ltd
Original Assignee
Osaka Gas Co Ltd
Takaoka Electric Mfg 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 Osaka Gas Co Ltd, Takaoka Electric Mfg Co Ltd filed Critical Osaka Gas Co Ltd
Priority to JP2557579U priority Critical patent/JPS586959Y2/ja
Publication of JPS55126400U publication Critical patent/JPS55126400U/ja
Application granted granted Critical
Publication of JPS586959Y2 publication Critical patent/JPS586959Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Ventilation (AREA)
JP2557579U 1979-03-02 1979-03-02 グレ−テイングを有する換気孔の自動開閉装置 Expired JPS586959Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2557579U JPS586959Y2 (ja) 1979-03-02 1979-03-02 グレ−テイングを有する換気孔の自動開閉装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2557579U JPS586959Y2 (ja) 1979-03-02 1979-03-02 グレ−テイングを有する換気孔の自動開閉装置

Publications (2)

Publication Number Publication Date
JPS55126400U JPS55126400U (enExample) 1980-09-06
JPS586959Y2 true JPS586959Y2 (ja) 1983-02-07

Family

ID=28866200

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2557579U Expired JPS586959Y2 (ja) 1979-03-02 1979-03-02 グレ−テイングを有する換気孔の自動開閉装置

Country Status (1)

Country Link
JP (1) JPS586959Y2 (enExample)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7299854B2 (ja) * 2020-03-30 2023-06-28 トヨタホーム株式会社 吹出口の閉鎖構造
CN113530591B (zh) * 2021-08-17 2025-04-22 中国铁路设计集团有限公司 一种盾构隧道装配式轨顶风道结构

Also Published As

Publication number Publication date
JPS55126400U (enExample) 1980-09-06

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