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经营范围
发明名称
Perfectionnements aux rondelles d'étanchéité
摘要
申请公布号
FR919673(A)
申请公布日期
1947.03.14
申请号
FRD919673
申请日期
1946.01.03
申请人
JARU LIMITED
发明人
分类号
F16J15/20
主分类号
F16J15/20
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代理人
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