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Publication of FR783367ApublicationCriticalpatent/FR783367A/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
G07C1/20—Checking timed patrols, e.g. of watchman
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FR783367D1934-02-101934-12-27Dispositif électrique enregistreur de ronde
ExpiredFR783367A
(fr)