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经营范围
发明名称
Improvements in lubricants
摘要
申请公布号
GB745409(A)
申请公布日期
1956.02.22
申请号
GB19530020025
申请日期
1953.07.20
申请人
CHEMISCHE WERKE HULS 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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