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发明名称
Valve stem
摘要
申请公布号
US2160398(A)
申请公布日期
1939.05.30
申请号
US19370130051
申请日期
1937.03.10
申请人
THE DILL MANUFACTURING COMPANY
发明人
CROWLEY JOHN C.
分类号
F16K15/20
主分类号
F16K15/20
代理机构
代理人
主权项
地址
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