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发明名称
Manchon d'étanchéité à disposer à l'intérieur des joints d'assemblage de tronçons de canalisations tubulaires accessibles de l'intérieur
摘要
申请公布号
FR1535891(A)
申请公布日期
1968.08.09
申请号
FR19670118331
申请日期
1967.08.18
申请人
WEGNER & CO
发明人
分类号
F16L17/025;F16L55/163
主分类号
F16L17/025
代理机构
代理人
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地址
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