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发明名称
摘要
申请公布号
FR2023944(A1)
申请公布日期
1970.08.21
申请号
FR19690040343
申请日期
1969.11.24
申请人
DIETRICH RICHARD
发明人
分类号
E04B1/24;E04B1/34;E04C1/00;E04C3/32;(IPC1-7):E04B1/00
主分类号
E04B1/24
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