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发明名称
Valve
摘要
申请公布号
US1860289(A)
申请公布日期
1932.05.24
申请号
US19290414985
申请日期
1929.12.18
申请人
CHARLES JOHNSON
发明人
JOHNSON CHARLES
分类号
F16K17/00
主分类号
F16K17/00
代理机构
代理人
主权项
地址
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