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发明名称
摘要
申请公布号
GB1257967(A)
申请公布日期
1971.12.22
申请号
GBD1257967
申请日期
1969.02.04
申请人
发明人
分类号
B29B9/06;B29B13/06;C08G63/80;C08G63/88;C08J3/12
主分类号
B29B9/06
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代理人
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