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发明名称
摘要
申请公布号
FR2265932(B3)
申请公布日期
1977.12.02
申请号
FR19750009328
申请日期
1975.03.25
申请人
AVCO CORP
发明人
分类号
E04B2/56;C09K21/00;E04B1/94;E04C3/04;(IPC1-7):04B1/94
主分类号
E04B2/56
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