Film cassette having markers for identifying and differentiating it from other cassettes
US5268956A · kind A · utility
1Cited by
5References
13Claims
0Family size
Inventor
Key dates
| Filing date | Dec 9, 1992 |
| Grant date | Dec 7, 1993 |
| Priority date | — |
| Expiry date | Dec 9, 2012 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B42/047
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An X ray film cassette has a marking mechanism whereby unique identification of the film cassette is provided by film exposed therewithin. Plural light-opaque markers mounted in the film cassette provide means for marking the X ray film therein during exposure with an image correlated with a marking on the cassette exterior, thereby indicating the particular cassette within which the X ray film was exposed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.