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经营范围
发明名称
Valve structure
摘要
申请公布号
US2031121(A)
申请公布日期
1936.02.18
申请号
US19340725230
申请日期
1934.05.12
申请人
MUELLER ERVIN H
发明人
MUELLER ERVIN H.
分类号
F16K5/08
主分类号
F16K5/08
代理机构
代理人
主权项
地址
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