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经营范围
发明名称
Process and apparatus for double-distillation
摘要
申请公布号
GB753144(A)
申请公布日期
1956.07.18
申请号
GB19540002998
申请日期
1954.02.02
申请人
CARL-ZEISS-STIFTUNG
发明人
分类号
B01D3/00
主分类号
B01D3/00
代理机构
代理人
主权项
地址
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