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Priority claimed from DE3843180Aexternal-prioritypatent/DE3843180A1/en
Application filed by Dietmar ErhardtfiledCriticalDietmar Erhardt
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Publication of ATE95324T1publicationCriticalpatent/ATE95324T1/en
Method for producing a plate with a flat main surface, method for producing a plate with parallel main surfaces and device for carrying out the methods