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Publication of FR668476ApublicationCriticalpatent/FR668476A/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
G07C3/00—Registering or indicating the condition or the working of machines or other apparatus, other than vehicles
G07C3/08—Registering or indicating the production of the machine either with or without registering working or idle time
G07C3/12—Registering or indicating the production of the machine either with or without registering working or idle time in graphical form
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FR668476D1928-01-301929-01-28Dispositif pour la constatation des mouvements de rotation d'outils
ExpiredFR668476A
(fr)