JPS5238757A - Locking device for fire-proof doors etc. - Google Patents

Locking device for fire-proof doors etc.

Info

Publication number
JPS5238757A
JPS5238757A JP11406275A JP11406275A JPS5238757A JP S5238757 A JPS5238757 A JP S5238757A JP 11406275 A JP11406275 A JP 11406275A JP 11406275 A JP11406275 A JP 11406275A JP S5238757 A JPS5238757 A JP S5238757A
Authority
JP
Japan
Prior art keywords
fire
locking device
proof doors
doors etc
proof
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
JP11406275A
Other languages
Japanese (ja)
Inventor
Misao Shibuya
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.)
NIKKO SANGYO KK
Original Assignee
NIKKO SANGYO KK
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 NIKKO SANGYO KK filed Critical NIKKO SANGYO KK
Priority to JP11406275A priority Critical patent/JPS5238757A/en
Publication of JPS5238757A publication Critical patent/JPS5238757A/en
Pending legal-status Critical Current

Links

Landscapes

  • Alarm Systems (AREA)

Abstract

PURPOSE: To provide easier execution with correcting mounting error and to provide smoothness in case of emergency.
COPYRIGHT: (C)1977,JPO&Japio
JP11406275A 1975-09-20 1975-09-20 Locking device for fire-proof doors etc. Pending JPS5238757A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11406275A JPS5238757A (en) 1975-09-20 1975-09-20 Locking device for fire-proof doors etc.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11406275A JPS5238757A (en) 1975-09-20 1975-09-20 Locking device for fire-proof doors etc.

Publications (1)

Publication Number Publication Date
JPS5238757A true JPS5238757A (en) 1977-03-25

Family

ID=14628066

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11406275A Pending JPS5238757A (en) 1975-09-20 1975-09-20 Locking device for fire-proof doors etc.

Country Status (1)

Country Link
JP (1) JPS5238757A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6609738B1 (en) 1996-02-20 2003-08-26 Securitron Magnalock Corp. Electromagnetic door lock system

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6609738B1 (en) 1996-02-20 2003-08-26 Securitron Magnalock Corp. Electromagnetic door lock system

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