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发明名称
Valve
摘要
申请公布号
US1887078(A)
申请公布日期
1932.11.08
申请号
US19300422804
申请日期
1930.01.23
申请人
A. W. WHEATON BRASS WORKS
发明人
WHEATON ABRAM W.
分类号
F16K31/524
主分类号
F16K31/524
代理机构
代理人
主权项
地址
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