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经营范围
发明名称
Chapeau d'étançon
摘要
申请公布号
FR937534(A)
申请公布日期
1948.08.19
申请号
FRD937534
申请日期
1946.12.26
申请人
EVENCE COPPEE & COMPAGNIE
发明人
分类号
E21D15/54
主分类号
E21D15/54
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