EP 0334390 B1 19940622 - Numbered documents.
Title (en)
Numbered documents.
Title (de)
Numerierte Dokumente.
Title (fr)
Documents numérotés.
Publication
Application
Priority
- EP 85302866 A 19850424
- GB 8410918 A 19840427
Abstract (en)
[origin: EP0334390A2] This invention relates to documents, such as banknotes, which are produced and used in large numbers and which, for a given series, are identical one with another except for a unique multi-digit number upon each individual document, the number thus uniquely identifying that document within the series. According to the present invention, to render unauthorised reproduction of the document more difficult, on each document the numerical or alphabetical characters in the identifying number are provided one above the other. In addition, at least two characters in the identifying number may differ from each other (in addition to any differences in the letters or digits which they represent) in one or more visible characteristics. Thus the differing characters may have different heights or widths or be in different styles of type. Preferably, the identifying number appears twice on each document, in diagonally opposite corners, and preferably the variation of physical characteristics of the characters along the length of one of the numbers is reversed in direction in the other of the numbers.
IPC 1-7
IPC 8 full level
G07D 7/00 (2006.01)
CPC (source: EP US)
G07D 7/0047 (2017.04 - EP US)
Designated contracting state (EPC)
CH DE FR GB IT LI SE
DOCDB simple family (publication)
EP 0334390 A2 19890927; EP 0334390 A3 19900905; EP 0334390 B1 19940622; EP 0334390 B2 19971217
DOCDB simple family (application)
EP 89107409 A 19850424