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Publication of BE711939ApublicationCriticalpatent/BE711939A/xx
E05B21/00—Locks with lamelliform tumblers which are not set by the insertion of the key and in which the tumblers do not follow the movement of the bolt e.g. Chubb-locks
E05B21/06—Cylinder locks, e.g. protector locks
E05B21/066—Cylinder locks, e.g. protector locks of the rotary-disc tumbler type