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发明名称
摘要
申请公布号
FR2152480(B1)
申请公布日期
1976.04.02
申请号
FR19710033556
申请日期
1971.09.17
申请人
GEBHART SIEGFRIED
发明人
分类号
E04B2/02;E04B2/46;E04C1/41;(IPC1-7):E04B1/00
主分类号
E04B2/02
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