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|---|
| 90/001244 | ULTAFINE POWDER OF SILICON CARBIDE, A METHOD FOR THE PREPARATION THEREOF AND SINTERED BODY THEREFROM | May 20, 1987 | Issued |
| 07/053603 | PROCESS FOR THE REMOVAL OF HYDROGEN FROM HYDROGEN COMPOUNDS DISSOLVED IN SILICON TETRACHLORIDE OR GERMANIUM TETRACHLORIDE | May 19, 1987 | Abandoned |
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