FIELD: tools.
SUBSTANCE: key for closing lock cylinder (12, 24) with one in wide side (3, 4) arranged calotte (11) has in narrow side (5, 6) disposed profiled groove (9, 10). Profile groove (9, 10) is guided past cap (11). Key is thus very difficult to copy.
EFFECT: lock cylinder (12, 24) with one in wide side (3, 4) arranged calotte (11).
8 cl, 5 dwg
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