JPS4931151B1 - - Google Patents

Info

Publication number
JPS4931151B1
JPS4931151B1 JP7510069A JP7510069A JPS4931151B1 JP S4931151 B1 JPS4931151 B1 JP S4931151B1 JP 7510069 A JP7510069 A JP 7510069A JP 7510069 A JP7510069 A JP 7510069A JP S4931151 B1 JPS4931151 B1 JP S4931151B1
Authority
JP
Japan
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
JP7510069A
Other languages
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 JP7510069A priority Critical patent/JPS4931151B1/ja
Priority to US00072361A priority patent/US3708675A/en
Priority to DE2046492A priority patent/DE2046492C3/en
Priority to GB4481770A priority patent/GB1320579A/en
Publication of JPS4931151B1 publication Critical patent/JPS4931151B1/ja
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Fire-Detection Mechanisms (AREA)
JP7510069A 1969-09-19 1969-09-19 Pending JPS4931151B1 (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP7510069A JPS4931151B1 (en) 1969-09-19 1969-09-19
US00072361A US3708675A (en) 1969-09-19 1970-09-15 Smoke detector in which air entrance and egress are located in oppositely disposed surfaces which are shaped to cause an air velocity differential
DE2046492A DE2046492C3 (en) 1969-09-19 1970-09-21 smoke detector
GB4481770A GB1320579A (en) 1969-09-19 1970-09-21 Smoke detector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7510069A JPS4931151B1 (en) 1969-09-19 1969-09-19

Publications (1)

Publication Number Publication Date
JPS4931151B1 true JPS4931151B1 (en) 1974-08-19

Family

ID=13566399

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7510069A Pending JPS4931151B1 (en) 1969-09-19 1969-09-19

Country Status (1)

Country Link
JP (1) JPS4931151B1 (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010257175A (en) * 2009-04-24 2010-11-11 Panasonic Electric Works Co Ltd Alarm
JP2010271894A (en) * 2009-05-21 2010-12-02 Panasonic Electric Works Co Ltd Smoke detecting alarm
JP2011128866A (en) * 2009-12-17 2011-06-30 Nohmi Bosai Ltd Photoelectric smoke sensor
JP2013168182A (en) * 2013-05-22 2013-08-29 Nohmi Bosai Ltd Photoelectric smoke sensor

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010257175A (en) * 2009-04-24 2010-11-11 Panasonic Electric Works Co Ltd Alarm
JP2010271894A (en) * 2009-05-21 2010-12-02 Panasonic Electric Works Co Ltd Smoke detecting alarm
JP2011128866A (en) * 2009-12-17 2011-06-30 Nohmi Bosai Ltd Photoelectric smoke sensor
JP2013168182A (en) * 2013-05-22 2013-08-29 Nohmi Bosai Ltd Photoelectric smoke sensor

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