CPC Subgroup
G07C 1/08 wherein the time is indicated by marking an element, e.g. a card or tape, in position determined by the time
Full Title
Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people (registering or indicating the working of machines or vehicles G07C3/00, G07C5/00) > 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