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G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
G07C1/00—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people
G07C1/02—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people not involving the registering, indicating or recording of other data
G07C1/08—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people not involving the registering, indicating or recording of other data wherein the time is indicated by marking an element, e.g. a card or tape, in position determined by the time
Zugsicherungseinrichtung, bei der durch ein auf der Strecke befindliches pulsierendes Magnetfeld auf dem Zuge fuer das Signal "Freie Fahrt" ein hoerbares Zeichen gegebenwird