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发明名称
Perfectionnements aux jonctions pour tubes
摘要
申请公布号
FR1013187(A)
申请公布日期
1952.07.23
申请号
FRD1013187
申请日期
1950.02.23
申请人
发明人
BEROUDIAUX EDOUARD
分类号
E04G7/14
主分类号
E04G7/14
代理机构
代理人
主权项
地址
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