Keys Or The Like With Means Preventing Overwinding (protecting Devices Arranged In, Or Attached To, The Barrel Subclass 16; In Connection With Automatic Winding Devices Subclass 20; Construction Of Removably Mounted Keys Subclass 29; Means Preventing Overwinding, Including Those Attached To The Case, Subclass 38; Protecting Means Subclass 71; Protection Against Overwinding For Electrical Winding Up Arrangements For Mechanical Clocks Subclass 443) [g04b 3/06] Patents (Class 968/36)