Security system label
US4686154A · kind A · utility
19Cited by
20References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Mar 1, 1984 |
| Grant date | Aug 11, 1987 |
| Priority date | — |
| Expiry date | Mar 1, 2004 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T428/26
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
A security label comprised of at least two magnetically soft materials having different coercivities but similar thresholds of magnetic saturation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.