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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Sadir Carpentier SA
Original Assignee
Sadir Carpentier SA
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Filing date
Publication date
Application filed by Sadir Carpentier SAfiledCriticalSadir Carpentier SA
Application grantedgrantedCritical
Publication of FR1015932ApublicationCriticalpatent/FR1015932A/fr
G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
G08B7/00—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00
G08B7/06—Signalling systems according to more than one of groups G08B3/00 - G08B6/00; Personal calling systems according to more than one of groups G08B3/00 - G08B6/00 using electric transmission, e.g. involving audible and visible signalling through the use of sound and light sources
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
FR1015932D1950-04-041950-04-04Système de commande de relais
ExpiredFR1015932A
(fr)