Patents Assigned to Crado Devices Limited
  • Safe having combination locking mechanisms
    Patent number: 4249469
    Abstract: A safe having first and second combination locking mechanisms which can each open the safe irrespective of the combination setting of the other combination locking mechanism, whereby one combination locking mechanism can be operated by a hotel customer and the other combination locking mechanism can be operated by the hotel management in order to provide a high degree of security.
    Type: Grant
    Filed: June 19, 1978
    Date of Patent: February 10, 1981
    Assignee: Crado Devices Limited
    Inventor: William J. Craske