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.)
G04C13/00—Driving mechanisms for clocks by primary clocks
G04C13/02—Circuit arrangements; Electric clock installations
G04C13/04—Primary clocks
G04C13/0409—Primary clocks monitoring or controlling primary clock or system with more than one primary clock, e.g. for switching-over to standby motor or power system
G04C13/0418—Primary clocks monitoring or controlling primary clock or system with more than one primary clock, e.g. for switching-over to standby motor or power system by using devices similar to secondary clocks
Einrichtung zur Ablesung des Zeigerstandes eines Messinstrumentes und zur Aufloesungdes angezeigten Wertes in Einzelzahlen und Fernuebertragung derselben
Feueralarmanlage mit mehreren die Zustandsaenderungen in den Feueralarmstromkreisen empfangenden und an eine gemeinsame UEberwachungsstelle weitermeldenden Ortssignalstellen