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发明名称
摘要
申请公布号
FR2029171(A5)
申请公布日期
1970.10.16
申请号
FR19690000572
申请日期
1969.01.13
申请人
TRUCHET RAOUL
发明人
分类号
E03D1/26;(IPC1-7):E03D1/00
主分类号
E03D1/26
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