FIELD: locksmith's work. SUBSTANCE: the lock code mechanism has a handle with marks, disk with a groove or bulge installed on the handle with marks, the disk is made in the form of inner, middle and outer rings, the rings are kinematically linked with one another and installed for fixing one relative to another against unauthorized turn and for authorized change of the relative position and for fixing the position, and the groove or bulge is made on the peripheral part of the outer ring. EFFECT: enhanced resistance to breaking in; the method for its manufacture and change of the code is offered. 3 cl, 3 dwg
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