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发明名称
Perfectionnements aux joints pour tubes du type dit à <tulipe> protégés intérieurement
摘要
申请公布号
FR1269294(A)
申请公布日期
1961.08.11
申请号
FR19600831667
申请日期
1960.06.30
申请人
SOCIETE DES TUBES DE MAUBEUGE
发明人
分类号
F16L13/02
主分类号
F16L13/02
代理机构
代理人
主权项
地址
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