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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Schneider Electric SE
Original Assignee
Schneider et Cie
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Filing date
Publication date
Application filed by Schneider et CiefiledCriticalSchneider et Cie
Application grantedgrantedCritical
Publication of FR504169ApublicationCriticalpatent/FR504169A/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)
FR504169A1918-02-131918-02-13Dispositif électrique indicateur et répétiteur de mouvements à distance
ExpiredFR504169A
(fr)