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发明名称
摘要
申请公布号
FR2280762(B1)
申请公布日期
1980.07.18
申请号
FR19740026205
申请日期
1974.07.29
申请人
GP ETUDES ET REALISATIONS
发明人
分类号
B44C7/02;(IPC1-7):E04F13/00
主分类号
B44C7/02
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代理人
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