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Publication date
Application filed by Carl E J NilsonfiledCriticalCarl E J Nilson
Publication of BE477894ApublicationCriticalpatent/BE477894A/en
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
Landscapes
Physics & Mathematics
(AREA)
General Physics & Mathematics
(AREA)
BE477894A1942-05-151947-12-06
Time recording device
BE477894A
(en)