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Emile Regnier SA Des Ets
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Emile Regnier SA Des Ets
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Application filed by Emile Regnier SA Des EtsfiledCriticalEmile Regnier SA Des Ets
Application grantedgrantedCritical
Publication of FR711236ApublicationCriticalpatent/FR711236A/fr
G08B—SIGNALLING SYSTEMS, e.g. PERSONAL CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
G08B5/00—Visible signalling systems, e.g. visible personal calling systems or remote indication of seats occupied
G08B5/22—Visible signalling systems, e.g. visible personal calling systems or remote indication of seats occupied using electric transmission; using electromagnetic transmission
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Physics & Mathematics
(AREA)
Electromagnetism
(AREA)
General Physics & Mathematics
(AREA)
FR711236D1931-02-051931-02-05Perfectionnements apportés aux installations de transmission d'ordres ou de signaux
ExpiredFR711236A
(fr)