SECURENTRY
Electronic Building Access Control and Monitoring Equipment Comprising a Central Computer as Interface Unit and Electronic Key Lock Boxes, the Boxes Being Accessible by a Combination of a Valid Code from a Finger Touch Keypad on the Lock Box in Conjunction with Encoded Card Read by the Lock Box and Storing Information and Being Capable of Transmitting via a Communication Channel, the Stored Information Through the Interface Unit to the Central Computer
Cancelled · December 22, 1983 · 73458136 ·