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Publication of BE657650ApublicationCriticalpatent/BE657650A/fr
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
G07C1/30—Parking meters
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Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
Vehicle Waterproofing, Decoration, And Sanitation Devices
(AREA)
Method for a centrally controlled telecommunication exchange system, particularly telephone exchange system, with a central control unit and peripheral control units