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Compagnie Industrielle des Telephones SA
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Compagnie Industrielle des Telephones SA
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Application filed by Compagnie Industrielle des Telephones SAfiledCriticalCompagnie Industrielle des Telephones SA
Application grantedgrantedCritical
Publication of FR987100ApublicationCriticalpatent/FR987100A/fr
G08B—SIGNALLING OR CALLING SYSTEMS; ORDER TELEGRAPHS; ALARM SYSTEMS
G08B5/00—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied
G08B5/22—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission
G08B5/24—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission with indicator element moving about a pivot, e.g. hinged flap or rotating vane
G08B5/30—Visible signalling systems, e.g. personal calling systems, remote indication of seats occupied using electric transmission; using electromagnetic transmission with indicator element moving about a pivot, e.g. hinged flap or rotating vane with rotating or oscillating members, e.g. vanes
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Physics & Mathematics
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Electromagnetism
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FR987100D1949-03-301949-03-30Perfectionnements aux annonciateurs à voyants pour installations téléphoniques
ExpiredFR987100A
(fr)