JPH0221717Y2 - - Google Patents

Info

Publication number
JPH0221717Y2
JPH0221717Y2 JP1985061940U JP6194085U JPH0221717Y2 JP H0221717 Y2 JPH0221717 Y2 JP H0221717Y2 JP 1985061940 U JP1985061940 U JP 1985061940U JP 6194085 U JP6194085 U JP 6194085U JP H0221717 Y2 JPH0221717 Y2 JP H0221717Y2
Authority
JP
Japan
Prior art keywords
ventilation
shield
check valve
valve body
ventilation hole
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
JP1985061940U
Other languages
English (en)
Japanese (ja)
Other versions
JPS61178140U (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 JP1985061940U priority Critical patent/JPH0221717Y2/ja
Publication of JPS61178140U publication Critical patent/JPS61178140U/ja
Application granted granted Critical
Publication of JPH0221717Y2 publication Critical patent/JPH0221717Y2/ja
Expired legal-status Critical Current

Links

Landscapes

  • Ventilation (AREA)
  • Building Environments (AREA)
JP1985061940U 1985-04-24 1985-04-24 Expired JPH0221717Y2 (en])

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1985061940U JPH0221717Y2 (en]) 1985-04-24 1985-04-24

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1985061940U JPH0221717Y2 (en]) 1985-04-24 1985-04-24

Publications (2)

Publication Number Publication Date
JPS61178140U JPS61178140U (en]) 1986-11-06
JPH0221717Y2 true JPH0221717Y2 (en]) 1990-06-12

Family

ID=30590682

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1985061940U Expired JPH0221717Y2 (en]) 1985-04-24 1985-04-24

Country Status (1)

Country Link
JP (1) JPH0221717Y2 (en])

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59175509U (ja) * 1983-05-13 1984-11-24 大下　一義 開閉装置付き床下換気口

Also Published As

Publication number Publication date
JPS61178140U (en]) 1986-11-06

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