PROCEDE POUR LA PREPARATION DE DERIVES DE PYRANNE.,申请号BE19510501397-传众专利搜索

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发明名称	PROCEDE POUR LA PREPARATION DE DERIVES DE PYRANNE.
摘要
申请公布号	BE501397(A4)	申请公布日期	1952.05.23
申请号	BE19510501397	申请日期	1951.02.21
申请人	PRODUITS ROCHE S.A.	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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