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发明名称
Combination adjustable needle and check valve
摘要
申请公布号
US2925243(A)
申请公布日期
1960.02.16
申请号
US19530381091
申请日期
1953.09.18
申请人
DONALD G. GRISWOLD
发明人
GRISWOLD DAVID E.
分类号
F16K47/10
主分类号
F16K47/10
代理机构
代理人
主权项
地址
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