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发明名称
METHOD OF OBTAINING A NON PIGMENTED OPAQUE MICROPOROUS FILM AND THE FILM SO PRODUCED
摘要
申请公布号
CA900794(A)
申请公布日期
1972.05.23
申请号
CAD900794
申请日期
申请人
PPG INDUSTRIES, INC.
发明人
ROSTYSLAW DOWBENKO;BRUCE N. MCBANE
分类号
主分类号
代理机构
代理人
主权项
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