JPH03116488U - - Google Patents

Info

Publication number
JPH03116488U
JPH03116488U JP2344090U JP2344090U JPH03116488U JP H03116488 U JPH03116488 U JP H03116488U JP 2344090 U JP2344090 U JP 2344090U JP 2344090 U JP2344090 U JP 2344090U JP H03116488 U JPH03116488 U JP H03116488U
Authority
JP
Japan
Prior art keywords
gas
metal oxide
oxide semiconductor
resistance value
state
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
JP2344090U
Other languages
English (en)
Japanese (ja)
Other versions
JP2547855Y2 (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 JP1990023440U priority Critical patent/JP2547855Y2/ja
Publication of JPH03116488U publication Critical patent/JPH03116488U/ja
Application granted granted Critical
Publication of JP2547855Y2 publication Critical patent/JP2547855Y2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Investigating Or Analyzing Materials By The Use Of Fluid Adsorption Or Reactions (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Emergency Alarm Devices (AREA)
JP1990023440U 1990-03-08 1990-03-08 ガス検出装置 Expired - Lifetime JP2547855Y2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1990023440U JP2547855Y2 (ja) 1990-03-08 1990-03-08 ガス検出装置

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1990023440U JP2547855Y2 (ja) 1990-03-08 1990-03-08 ガス検出装置

Publications (2)

Publication Number Publication Date
JPH03116488U true JPH03116488U (mo) 1991-12-03
JP2547855Y2 JP2547855Y2 (ja) 1997-09-17

Family

ID=31526425

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1990023440U Expired - Lifetime JP2547855Y2 (ja) 1990-03-08 1990-03-08 ガス検出装置

Country Status (1)

Country Link
JP (1) JP2547855Y2 (mo)

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6140937A (ja) * 1984-07-31 1986-02-27 末松　大吉 暗渠用ブロツクの施工方法

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6140937A (ja) * 1984-07-31 1986-02-27 末松　大吉 暗渠用ブロツクの施工方法

Also Published As

Publication number Publication date
JP2547855Y2 (ja) 1997-09-17

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Legal Events

Date Code Title Description
EXPY Cancellation because of completion of term