Device for protecting works of art
US4458241A · kind A · utility
7Cited by
7References
9Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Sep 1, 1981 |
| Grant date | Jul 3, 1984 |
| Priority date | — |
| Expiry date | Sep 1, 2001 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG08B13/149
- WIPO fieldControl
- WIPO sectorInstruments
Abstract
An anti-theft device having a pair of contact elements mountable on a picture frame, one of the elements being pendulously swingable with reference to the other so as to contact or break contact with the other element when the picture is disturbed, and thereby actuating a circuit which sets off an alarm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.