JPH02111896U - - Google Patents

Info

Publication number
JPH02111896U
JPH02111896U JP1788789U JP1788789U JPH02111896U JP H02111896 U JPH02111896 U JP H02111896U JP 1788789 U JP1788789 U JP 1788789U JP 1788789 U JP1788789 U JP 1788789U JP H02111896 U JPH02111896 U JP H02111896U
Authority
JP
Japan
Prior art keywords
dark box
top surface
smoke detector
photoelectric smoke
circuit board
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
JP1788789U
Other languages
English (en)
Japanese (ja)
Other versions
JP2536630Y2 (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 JP1989017887U priority Critical patent/JP2536630Y2/ja
Publication of JPH02111896U publication Critical patent/JPH02111896U/ja
Application granted granted Critical
Publication of JP2536630Y2 publication Critical patent/JP2536630Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Fire-Detection Mechanisms (AREA)
  • Shielding Devices Or Components To Electric Or Magnetic Fields (AREA)
JP1989017887U 1989-02-20 1989-02-20 光電式煙感知器 Expired - Lifetime JP2536630Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1989017887U JP2536630Y2 (ja) 1989-02-20 1989-02-20 光電式煙感知器

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1989017887U JP2536630Y2 (ja) 1989-02-20 1989-02-20 光電式煙感知器

Publications (2)

Publication Number Publication Date
JPH02111896U true JPH02111896U (enrdf_load_stackoverflow) 1990-09-06
JP2536630Y2 JP2536630Y2 (ja) 1997-05-21

Family

ID=31232058

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1989017887U Expired - Lifetime JP2536630Y2 (ja) 1989-02-20 1989-02-20 光電式煙感知器

Country Status (1)

Country Link
JP (1) JP2536630Y2 (enrdf_load_stackoverflow)

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4953494A (enrdf_load_stackoverflow) * 1972-06-27 1974-05-24
JPS5738294U (enrdf_load_stackoverflow) * 1980-08-08 1982-03-01

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS4953494A (enrdf_load_stackoverflow) * 1972-06-27 1974-05-24
JPS5738294U (enrdf_load_stackoverflow) * 1980-08-08 1982-03-01

Also Published As

Publication number Publication date
JP2536630Y2 (ja) 1997-05-21

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