JPH01130361U - - Google Patents

Info

Publication number
JPH01130361U
JPH01130361U JP2303988U JP2303988U JPH01130361U JP H01130361 U JPH01130361 U JP H01130361U JP 2303988 U JP2303988 U JP 2303988U JP 2303988 U JP2303988 U JP 2303988U JP H01130361 U JPH01130361 U JP H01130361U
Authority
JP
Japan
Prior art keywords
plate
hook
shaped shutter
shutter
electromagnet
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.)
Pending
Application number
JP2303988U
Other languages
English (en)
Japanese (ja)
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 JP2303988U priority Critical patent/JPH01130361U/ja
Publication of JPH01130361U publication Critical patent/JPH01130361U/ja
Pending legal-status Critical Current

Links

Landscapes

  • Air-Flow Control Members (AREA)
  • Ventilation (AREA)
JP2303988U 1988-02-25 1988-02-25 Pending JPH01130361U (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2303988U JPH01130361U (fr) 1988-02-25 1988-02-25

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2303988U JPH01130361U (fr) 1988-02-25 1988-02-25

Publications (1)

Publication Number Publication Date
JPH01130361U true JPH01130361U (fr) 1989-09-05

Family

ID=31241694

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2303988U Pending JPH01130361U (fr) 1988-02-25 1988-02-25

Country Status (1)

Country Link
JP (1) JPH01130361U (fr)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51140344A (en) * 1975-05-29 1976-12-03 Showa Saajiento Kk Method and apparatus for automatically closing anti-smoke fire door

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS51140344A (en) * 1975-05-29 1976-12-03 Showa Saajiento Kk Method and apparatus for automatically closing anti-smoke fire door

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