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经营范围
发明名称
Improvements relating to the production of films
摘要
申请公布号
GB946089(A)
申请公布日期
1964.01.08
申请号
GB19610036526
申请日期
1961.10.11
申请人
W. R. GRACE & CO.
发明人
分类号
C09D4/00
主分类号
C09D4/00
代理机构
代理人
主权项
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