Abstract: A system for storing and electronically monitoring the locations of keys and other articles, and providing a printed record of transactions involving the stored articles. The articles are held on digitally coded article holders which are stored on a storage panel and electronically scanned to determine the identity of the article at each storage location on the panel. When an authorized user of the system enters his user code and makes a request for one of the articles, an indication light is energized to indicate the location of the requested article. If the article is absent, the system displays the user code of the authorized user in possession of the missing article. A printer in the system operates to provide a printed record of which users removed and returned which articles at which times. An optional scale weighs articles such as pharmaceuticals to determine the weight of the contents that are removed.

Abstract: A system for storing and electronically monitoring the locations of keys and other articles, and providing a printed record of transactions involving the stored articles. The articles are held on digitally coded article holders which are stored on a storage panel and electronically scanned to determine the identity of the article at each storage location on the panel. When an authorized user of the system enters his user code and makes a request for one of the articles, an indication light is energized to indicate the location of the requested article. If the article is absent, the system displays the user code of the authorized user in possession of the missing article. A printer in the system operates to provide a printed record of which users removed and returned which articles at which times. An optional scale weighs articles such as pharmaceuticals to determine the weight of the contents that are removed.

Abstract: A microprocessor based system for storing and monitoring articles such as the keys for the vehicles in the inventory of an automobile dealership. The keys are held on binary coded cards which are received by edge connectors mounted on four removable panels on a wall mounted storage board. Each key has an identification number determined by the code on its card, and each edge connector has a unique address. The microprocessor continuously scans the edge connectors and stores in memory the code of the key at each address. Each edge connector has an indicator light which is turned on when a valid user code is entered on a keyboard and a request is made for the key located at the address of the edge connector. If request is made for a key which is missing, the system displays the number of the key and the user code of the person who removed it.