Device for opening and closing of windows and doors, has bar element whereby mounting device has contact surface with two claw-like holders partly surrounding window or door knob

摘要

Device has a bar element (1) which is connected by a joint (2) with a mounting device (3). Mounting device has a contact surface (4) with two claw-like holders (7) partly surrounding the window or door knob. The holders are arranged opposite each other on the contact surface of the mounting device.