System for detecting tampering with a postage value accounting unit
US4780835A · kind A · utility
22Cited by
9References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 23, 1986 |
| Grant date | Oct 25, 1988 |
| Priority date | — |
| Expiry date | Jun 23, 2006 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG07B2017/00588
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A system for processing batch mail in which evidence of tampering with a postage value accounting unit is provided. The accounting unit cooperates with a printer to print postage and the zip code in bar code form on a mail piece. If there is evidence of tampering with the accounting unit, as incorrect zip code in bar code form is printed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.