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经营范围
发明名称
PROCEDE DE PREPARATION D'ACETALS.
摘要
申请公布号
BE517715(A4)
申请公布日期
1955.01.07
申请号
BE19530517715
申请日期
1953.02.16
申请人
RUHRCHEMIE AKTIENGESELLSCHAFT
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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