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Application filed by Fanal S A De C VfiledCriticalFanal S A De C V
Priority to MXPA/A/1997/000739ApriorityCriticalpatent/MXPA97000739A/en
Priority claimed from MXPA/A/1997/000739Aexternal-prioritypatent/MXPA97000739A/en
Publication of MX9700739ApublicationCriticalpatent/MX9700739A/en
Publication of MXPA97000739ApublicationCriticalpatent/MXPA97000739A/en
The present invention refers to improvements to locks and more specifically to a lock comprising in combination one or more bosses, that at the time of inserting in the grooves of the lid impedes the cylinder support from turning and with that turns the cylinder forcing in this manner the lock to open it without a key; likewise the invention could present a variation at combining notches formed in the lid that are firmly inserted in the cutout grooves in the cylinder support with which it also achieves to assure that said cylinder support cannot be turned avoiding the possibility of opening the secured door or drawer without the corresponding key.