FIELD: lock production. SUBSTANCE: lock has a case, lock rim, and spring loaded cross bar with at least one group of inclined code slots, a key hole and a key. Additional group of inclined code slots of triangular profile is originated on the cross bar. Reply code slots of triangular profile are originated respectively on the key. Besides, the case has a lug to prevent access to the cross bar. Lock reliability is increased at the expense of additional code group. Two-cross-bar lock option is proposed to enhance lock reliability. EFFECT: enhanced reliability. 3 cl, 14 dwg
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