DIFF Subgroup
E05C 17/443 Full Title
Devices for holding wings open; Devices for limiting opening of wings or for holding wings open by a movable member extending between frame and wing; Braking devices, stops or buffers, combined therewith (combined with hinges E05D11/00; combined with operating apparatus for wings E05F; other braking devices, stops, buffers E05F5/00) > by mechanical means (E05C17/60 takes precedence) > with a device carried on the wing for frictional or like engagement with a fixed flat surface, e.g. retractable feet