Number | Name | Date | Kind |
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4955357 | Takeguchi et al. | Sep 1990 | A |
5268663 | Takeuti et al. | Dec 1993 | A |
5588993 | Holder | Dec 1996 | A |
5919303 | Holder | Jul 1999 | A |
6110272 | Aikawa et al. | Aug 2000 | A |
6284040 | Holder et al. | Sep 2001 | B1 |
Entry |
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“Historical Overview of Silicon Crystal Pulling Development”, Werner Zulehner, Materials Science & Enginering, pp. 7-15, 2000. |