JPS52123539A - Smoke prevention device in fire proof shutter - Google Patents

Smoke prevention device in fire proof shutter

Info

Publication number
JPS52123539A
JPS52123539A JP3873476A JP3873476A JPS52123539A JP S52123539 A JPS52123539 A JP S52123539A JP 3873476 A JP3873476 A JP 3873476A JP 3873476 A JP3873476 A JP 3873476A JP S52123539 A JPS52123539 A JP S52123539A
Authority
JP
Japan
Prior art keywords
prevention device
fire proof
smoke prevention
proof shutter
shutter
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
JP3873476A
Other languages
English (en)
Japanese (ja)
Other versions
JPS552514B2 (enrdf_load_stackoverflow
Inventor
Masatada Yamamoto
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to JP3873476A priority Critical patent/JPS52123539A/ja
Publication of JPS52123539A publication Critical patent/JPS52123539A/ja
Publication of JPS552514B2 publication Critical patent/JPS552514B2/ja
Granted legal-status Critical Current

Links

JP3873476A 1976-04-08 1976-04-08 Smoke prevention device in fire proof shutter Granted JPS52123539A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3873476A JPS52123539A (en) 1976-04-08 1976-04-08 Smoke prevention device in fire proof shutter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3873476A JPS52123539A (en) 1976-04-08 1976-04-08 Smoke prevention device in fire proof shutter

Publications (2)

Publication Number Publication Date
JPS52123539A true JPS52123539A (en) 1977-10-17
JPS552514B2 JPS552514B2 (enrdf_load_stackoverflow) 1980-01-21

Family

ID=12533545

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3873476A Granted JPS52123539A (en) 1976-04-08 1976-04-08 Smoke prevention device in fire proof shutter

Country Status (1)

Country Link
JP (1) JPS52123539A (enrdf_load_stackoverflow)

Also Published As

Publication number Publication date
JPS552514B2 (enrdf_load_stackoverflow) 1980-01-21

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