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发明名称
摘要
申请公布号
SE331893(B)
申请公布日期
1971.01.18
申请号
SE19690008969
申请日期
1969.06.24
申请人
A-SYST BYGGELEMENT AB
发明人
DUVHOEK I
分类号
E04B1/68;(IPC1-7):E04B1/68
主分类号
E04B1/68
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