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经营范围
发明名称
Ball check valve with particular cage means
摘要
申请公布号
US3289694(A)
申请公布日期
1966.12.06
申请号
US19630268433
申请日期
1963.03.27
申请人
DELTROL CORP.
发明人
ELLIOTT ROBERT A.;THE CONTINENTAL ILLINOIS BANK AND TRUS
分类号
F16K15/18
主分类号
F16K15/18
代理机构
代理人
主权项
地址
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