Precision radiography scaling device
US5149965A · kind A · utility
26Cited by
17References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 23, 1990 |
| Grant date | Sep 22, 1992 |
| Priority date | — |
| Expiry date | Apr 23, 2010 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B6/508
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
At least one radiopaque sphere of known dimensions with means for positioning same in a radiographic image field and a method for scaling radiographic images including straight AP and lateral views using such a radiopaque sphere.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.