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发明名称
Flow control valve
摘要
申请公布号
US2807279(A)
申请公布日期
1957.09.24
申请号
US19550530167
申请日期
1955.08.23
申请人
PRESNELL FRANK G
发明人
PRESNELL FRANK G.
分类号
主分类号
代理机构
代理人
主权项
地址
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