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.)
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
G—PHYSICS
G08—SIGNALLING
G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
G08C19/00—Electric signal transmission systems
G08C19/38—Electric signal transmission systems using dynamo-electric devices
Fernmeldeanlage zur elektromagnetischen UEbertragung von Zahlen und Zeichen von einer Sendestelle aus auf eine oder mehrere Empfangsstellen, an welcher die Zahlen oder Zeichen sichtbar gemacht werden sollen