Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
E05B11/00—Devices preventing keys from being removed from the lock ; Devices preventing falling or pushing out of keys
E05B11/005—Devices preventing keys from being removed from the lock ; Devices preventing falling or pushing out of keys by key modifications or attachments, e.g. excentric centre of gravity