Josef Frumm

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Fridolfing, DE

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Patents Grantslast 30 patents

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Process and device for producing a cylindrical single crystal and p...
- Patent number 6,159,284
- Issue date Dec 12, 2000
- Wacker Siltronic Gesellschaft fur Halbleitermaterialien AG
- Hans Olkrug
- B28 - WORKING CEMENT, CLAY, OR STONE