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发明名称
Porous film and method of making
摘要
申请公布号
US3379658(A)
申请公布日期
1968.04.23
申请号
US19640370042
申请日期
1964.05.25
申请人
CHARLES R. KEMPER
发明人
KEMPER CHARLES R.
分类号
C08J9/26
主分类号
C08J9/26
代理机构
代理人
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地址
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