Description
Class E05C : BOLTS OR FASTENING DEVICES FOR WINGS, SPECIALLY FOR DOORS OR WINDOWS
Subclass 3/12: Fastening devices with bolts moving pivotally or rotatively (devices released automatically by pull or pressure on the wing E05C 19/02) with latching action (devices in which the securing part is formed or merely carried by a spring and moves only by distortion of the spring, e.g. snaps, E05C 19/06)