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发明名称
摘要
申请公布号
NL6712903(A)
申请公布日期
1968.03.25
申请号
NL19670012903
申请日期
1967.09.21
申请人
发明人
分类号
C08F8/00;C08F220/44
主分类号
C08F8/00
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