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发明名称
Valve
摘要
申请公布号
US2210189(A)
申请公布日期
1940.08.06
申请号
US19390276367
申请日期
1939.05.29
申请人
HOWARD F. SMITH
发明人
SORENSEN SAM
分类号
F16K3/18
主分类号
F16K3/18
代理机构
代理人
主权项
地址
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