Luggage locker mechanism with controller access - uses two locks; one lock for user whose key rotates cam to operate catch and other lock for controller for easy access
GB1544542A
Automatic device for carrying out a service or sale on credit
ES376779A1
Coin receiving and reimbursing apparatus
FR1468224A
Working time controller
GB880644A
Improvements in or relating to prepayment locks for automatic left-luggage lockers