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发明名称
Perfectionnements aux dispositifs d'étanchéité poussée à contact dur pour vannes et analogues
摘要
申请公布号
FR1282630(A)
申请公布日期
1962.01.27
申请号
FR19600846742
申请日期
1960.12.13
申请人
发明人
VULLIEZ PAUL
分类号
F16K5/20
主分类号
F16K5/20
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代理人
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