Improvements in or relating to the production of pyrazine derivatives,申请号GB19440016512-传众专利搜索

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发明名称	Improvements in or relating to the production of pyrazine derivatives
摘要
申请公布号	GB599687(A)	申请公布日期	1948.03.18
申请号	GB19440016512	申请日期	1944.08.30
申请人	MERCK & CO. INC.	发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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