Patents Assigned to Diesecke & Devrient GmbH
  • Numbering apparatus for documents, and numbered documents
    Patent number: 6164701
    Abstract: To improve the security in data carriers, such as papers of value, bank notes, ID cards, etc., a numbering apparatus is proposed for individualizing the data carrier whereby the characters are engraved in the engraved blocks present on the numbering apparatus such that the serial number extends along a line having a curvature.
    Type: Grant
    Filed: August 18, 1997
    Date of Patent: December 26, 2000
    Assignee: Diesecke & Devrient GmbH
    Inventor: Gerhard Murl