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发明名称
BALL VALVE HAVING PROGRESSIVE ENGAGEMENT OF BALL AND YIELDABLE SEAT
摘要
申请公布号
US3497176(A)
申请公布日期
1970.02.24
申请号
USD3497176
申请日期
1967.10.09
申请人
HILLS MCCANNA CO.
发明人
WERNER K. PRIESE
分类号
F16K5/06;F16K5/20;(IPC1-7):F16K25/00;F16K5/00
主分类号
F16K5/06
代理机构
代理人
主权项
地址
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