An improved method and system of temporarily attaching a frame to a masonry building structure. A circular base mount is inserted into a circular sleeve, that has been pre-drilled into masonry by a coring bit. The masonry core is left in place. The circular base has contact with the inner surface of...http://www.google.de/patents/US7810295?utm_source=gb-gplus-sharePatent US7810295 - Hurricane and storm protection large windows and doors
