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发明名称
Valve structure
摘要
申请公布号
US1825568(A)
申请公布日期
1931.09.29
申请号
US19260109197
申请日期
1926.05.14
申请人
NATIONAL BRASS MANUFACTURING COMPANY
发明人
WRAY CHARLES F.
分类号
F16K3/26
主分类号
F16K3/26
代理机构
代理人
主权项
地址
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