SE356624BSE1367370ASE1367370ASE356624BSE 356624 BSE356624 BSE 356624BSE 1367370 ASE1367370 ASE 1367370ASE 1367370 ASE1367370 ASE 1367370ASE 356624 BSE356624 BSE 356624B
Authority
SE
Sweden
Application number
SE1367370A
Inventor
A Kobayashi
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 LtdfiledCriticalNittan Co Ltd
Publication of SE356624BpublicationCriticalpatent/SE356624B/xx
G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
G08B17/00—Fire alarms; Alarms responsive to explosion
G08B17/10—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means
G08B17/11—Actuation by presence of smoke or gases, e.g. automatic alarm devices for analysing flowing fluid materials by the use of optical means using an ionisation chamber for detecting smoke or gas