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.)
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.)
DETECTIF
Original Assignee
DETECTIF
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 DETECTIFfiledCriticalDETECTIF
Application grantedgrantedCritical
Publication of FR668616ApublicationCriticalpatent/FR668616A/fr
G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
G08B19/00—Alarms responsive to two or more different undesired or abnormal conditions, e.g. burglary and fire, abnormal temperature and abnormal rate of flow
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR668616D1929-01-291929-01-29Dispositif de protection contre le vol, l'incendie, l'inondation, etc.
ExpiredFR668616A
(fr)