Intrusion free lost key bunch recovery - involves combination of secret characteristic and public computer data store

摘要

The system is used for identifying a bunch of keys, or other object, lost by an owner who does not know the time or place of loss. It operates without any risk of use by an unauthorised person. Use is made of a characteristic, of widely variable shape and colour, with a fixed anonymous recognition characteristic, acting in conjunction with the store of an electronic data installation, operated by a state office, to effect a return link between the lost object and its owner. Combined action is ensured only by the anonymous operation of the functionally cohesive components.