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经营范围
发明名称
Electromagnetically operated valve
摘要
申请公布号
US2372853(A)
申请公布日期
1945.04.03
申请号
US19430472685
申请日期
1943.01.18
申请人
RAY WILLIAM A
发明人
RAY WILLIAM A.
分类号
F16K31/06
主分类号
F16K31/06
代理机构
代理人
主权项
地址
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