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经营范围
发明名称
FLUID SEALING DEVICE
摘要
申请公布号
US3698728(A)
申请公布日期
1972.10.17
申请号
USD3698728
申请日期
1971.01.07
申请人
MCDONNELL DOUGLAS CORP.
发明人
JAMES V. WALKER
分类号
F16J15/10;(IPC1-7):F16J15/10
主分类号
F16J15/10
代理机构
代理人
主权项
地址
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