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International Standard Electric Corp
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International Standard Electric Corp
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Application filed by International Standard Electric CorpfiledCriticalInternational Standard Electric Corp
Application grantedgrantedCritical
Publication of FR941050ApublicationCriticalpatent/FR941050A/en
H04Q3/42—Circuit arrangements for indirect selecting controlled by common circuits, e.g. register controller, marker
G—PHYSICS
G08—SIGNALLING
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
G08B5/221—Local indication of seats occupied in a facility, e.g. in a theatre
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FR941050D1945-09-051947-01-16 Improvements to recording systemsExpiredFR941050A (en)