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经营范围
发明名称
Perfectionnements aux obturateurs étanches
摘要
申请公布号
BE590215(A1)
申请公布日期
1960.08.16
申请号
BE19600590215
申请日期
1960.04.27
申请人
BIRFIELD ENGINEERING LIMITED
发明人
分类号
(IPC1-7):F06K
主分类号
(IPC1-7):F06K
代理机构
代理人
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地址
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