Antipilferage systems
US5049856A · kind A · utility
14Cited by
21References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 4, 1989 |
| Grant date | Sep 17, 1991 |
| Priority date | — |
| Expiry date | Dec 4, 2009 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01F5/003
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An antipilferage system for the detection of magnetic tags comprises an assembly (2) of spirally wound emitter (1) and/or detector (3a, 3b) coils. This arrangement enables a tag to be detected regardless of its orientation.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.