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经营范围
发明名称
Système d'éléments tubulaires à doubles parois
摘要
申请公布号
FR775303(A)
申请公布日期
1934.12.26
申请号
FRD775303
申请日期
1934.07.03
申请人
发明人
OGNIBENI TITO
分类号
E02D5/38;E02D5/66
主分类号
E02D5/38
代理机构
代理人
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地址
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