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JPS547389A - Photoelectric smoke detector - Google Patents

Photoelectric smoke detector

Info

Publication number
JPS547389A
JPS547389A JP7187277A JP7187277A JPS547389A JP S547389 A JPS547389 A JP S547389A JP 7187277 A JP7187277 A JP 7187277A JP 7187277 A JP7187277 A JP 7187277A JP S547389 A JPS547389 A JP S547389A
Authority
JP
Japan
Prior art keywords
smoke detector
photoelectric smoke
photoelectric
detector
smoke
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
JP7187277A
Other languages
Japanese (ja)
Inventor
Hiroshi Tagashira
Hiroshi Tanaka
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.)
Nittan Co Ltd
Original Assignee
Nittan 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 Nittan Co Ltd filed Critical Nittan Co Ltd
Priority to JP7187277A priority Critical patent/JPS547389A/en
Publication of JPS547389A publication Critical patent/JPS547389A/en
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire-Detection Mechanisms (AREA)
JP7187277A 1977-06-17 1977-06-17 Photoelectric smoke detector Pending JPS547389A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7187277A JPS547389A (en) 1977-06-17 1977-06-17 Photoelectric smoke detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7187277A JPS547389A (en) 1977-06-17 1977-06-17 Photoelectric smoke detector

Publications (1)

Publication Number Publication Date
JPS547389A true JPS547389A (en) 1979-01-20

Family

ID=13473030

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7187277A Pending JPS547389A (en) 1977-06-17 1977-06-17 Photoelectric smoke detector

Country Status (1)

Country Link
JP (1) JPS547389A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11476071B2 (en) 2018-06-18 2022-10-18 Dehn Se Disconnecting device for a surge arrester

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5195800A (en) * 1975-02-19 1976-08-21

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5195800A (en) * 1975-02-19 1976-08-21

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US11476071B2 (en) 2018-06-18 2022-10-18 Dehn Se Disconnecting device for a surge arrester

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