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Dieter Drechsel
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Bruchkobel, DE
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last 30 patents
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Patent Grant
Apparatus for crystal pulling
Patent number
5,599,390
Issue date
Feb 4, 1997
Leybold Aktiengesellschaft
Dieter Drechsel
C30 - CRYSTAL GROWTH
Information
Patent Grant
Crystal pulling method and apparatus for the practice thereof
Patent number
5,292,486
Issue date
Mar 8, 1994
Leybold Aktiengesellschaft
Dieter Drechsel
C30 - CRYSTAL GROWTH
Information
Patent Grant
Device for pulling crystals
Patent number
5,234,664
Issue date
Aug 10, 1993
Leybold Aktiengesellschaft
Dieter Drechsel
C30 - CRYSTAL GROWTH
Information
Patent Grant
Apparatus for pulling monocrystals
Patent number
5,180,562
Issue date
Jan 19, 1993
Leybold Aktiengesellschaft
Dieter Drechsel
C30 - CRYSTAL GROWTH
Information
Patent Grant
Apparatus for the continuous feeding of material to be melted
Patent number
4,904,143
Issue date
Feb 27, 1990
Leybold Aktiengesellschaft
Dieter Drechsel
C30 - CRYSTAL GROWTH
Information
Patent Grant
Apparatus for producing monocrystals
Patent number
4,186,173
Issue date
Jan 29, 1980
Leybold-Heraeus GmbH & Co. KG
Karl Jericho
C30 - CRYSTAL GROWTH