Apparatus for imprinting a document with secure, machine readable information
US4852478A · kind A · utility
1Cited by
7References
12Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 24, 1987 |
| Grant date | Aug 1, 1989 |
| Priority date | — |
| Expiry date | Mar 24, 2007 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB44B5/0009
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
An imprinter for imprinting a document with two lines of information forming two rows of alphanumeric characters wherein the two rows of imprinted characters have corresponding characters and corresponding relative character positions such that each line contains the same informational content, one of the lines of rows being substantially tamperproof and the other being machine readable.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.