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.)
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ELAUL FR
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ELAUL FR
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Application filed by ELAUL FRfiledCriticalELAUL FR
Priority to FR7245378ApriorityCriticalpatent/FR2210789B3/fr
Publication of FR2210789A1publicationCriticalpatent/FR2210789A1/fr
Application grantedgrantedCritical
Publication of FR2210789B3publicationCriticalpatent/FR2210789B3/fr
G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
G08B1/00—Systems for signalling characterised solely by the form of transmission of the signal
G08B1/08—Systems for signalling characterised solely by the form of transmission of the signal using electric transmission ; transformation of alarm signals to electrical signals from a different medium, e.g. transmission of an electric alarm signal upon detection of an audible alarm signal
