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发明名称
LUBRICATED BALL VALVE HAVING SEATING RINGS WITH PREFORMED MATCHING SEATING SURFACES
摘要
申请公布号
US3424190(A)
申请公布日期
1969.01.28
申请号
USD3424190
申请日期
1965.03.01
申请人
ROCKWELL MFG. CO.
发明人
ADOLF WOLFENSPERGER
分类号
F16K5/20;F16K5/22;(IPC1-7):F16K5/22;F16K5/06;F16K5/18
主分类号
F16K5/20
代理机构
代理人
主权项
地址
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