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发明名称
Boisseau pour l'établissement des gaines et autres conduits
摘要
申请公布号
FR922185(A)
申请公布日期
1947.06.02
申请号
FRD922185
申请日期
1945.12.19
申请人
发明人
NICOLE ANDRE
分类号
E04F17/02
主分类号
E04F17/02
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代理人
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