Patent US 4949010A
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| Patent number | US 4949010A |
|---|---|
| Title | X-ray attenuating ceramic materials |
| Inventors | Ronald O. Petersen, James L. McAlpin |
| Company | Tektronix Inc |
| Filing date | 1988-01-11 |
| Grant date | 1990-08-14 |
| Cites |