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经营范围
发明名称
VALVE CONSTRUCTION
摘要
申请公布号
US3500857(A)
申请公布日期
1970.03.17
申请号
USD3500857
申请日期
1967.10.27
申请人
W.G.B. OIL CLARIFIER INC.
发明人
DONALD M. GRAY
分类号
F16K15/14;(IPC1-7):F01M1/10;F16K17/04
主分类号
F16K15/14
代理机构
代理人
主权项
地址
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