| 摘要 |
<p>The invented safety system of key protection against unauthorized handling therewith is characterized in that when manufacturing or purchase of an original cylinder-type safety lock, a customer evidence record is established. In this customer evidence record there are made the following entries: safety card and/or system card serial number, and serial numbers of all the keys supplied to the cylinder-type safety lock. Customer specimen signature is issued on both the safety card and evidence record. The specimen signature is then entered into a database. When manufacturing another replacement key, checks of the cylinder-type safety lock card and/or the system card, specimen signature entered in the database and present on the customer evidence record where serial number of the key and date of its manufacture is specified. When producing a replacement key reject, an evidence card of the reject is established, serial number of the key is recorded in the evidence card and the key is put in a safe. Serial number of the key is marked on the bill of sale or invoice.</p> |
