133650 ⎘
Man-operated mechanisms for operating wings, including those which also operate the fastening for wings in general, e.g. fanlights with longitudinally-moving bars guided, e.g. by pivoted links, in or on the frame; Mechanisms by which the bar shifts the wing shifting the wing by pivotally-connected members (moving) in a plane parallel to the pivot axis of the wing consisting of a lever, e.g. an angle lever, and one or more additional links no material