E05B17/2042 - CPC Classification

Accessories in connection with locks; Means independent of the locking mechanism for preventing unauthorised opening, e.g. for securing the bolt in the fastening position; Securing, deadlocking or "dogging" the bolt in the fastening position not following the movement of the bolt moving otherwise than only rectilinearly and only pivotally or rotatively

• E05B17/2046 » {performing both movements simultaneously, e.g. screwing} 1