X-ray film apparatus
US3959656A · kind A · utility
1Cited by
5References
9Claims
0Family size
Inventor
Key dates
| Filing date | Oct 29, 1974 |
| Grant date | May 25, 1976 |
| Priority date | — |
| Expiry date | Oct 29, 1994 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03B42/025
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
The apparatus comprises an apertured lead plate and a film-holding tray for use therewith, with the tray carrying marking or calibration guides which permit the film to be exposed in several positions with respect to the aperture whereby a single sheet of film can be used to take a plurality of X-ray pictures.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.