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发明名称
COFRAGEM PERDIDA
摘要
申请公布号
BR8100124(A)
申请公布日期
1981.05.26
申请号
BR19810000124
申请日期
1981.01.08
申请人
DUPONT J
发明人
DUPONT J
分类号
E04G11/00;(IPC1-7):E04G11/00
主分类号
E04G11/00
代理机构
代理人
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地址
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