Dr. Karl Thomae GmbH
Patent: US6344/449 B1, 2002 ;
Location in patent: Example A14a) ;

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Dr. Karl Thomae GmbH
Patent: US6344449 B1, 2002 ;
Location in patent: Example A14a) ;

Kyowa Hakko Kogyo Co., Ltd.
Patent: US4344945 A1, 1982 ;