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发明名称
Valve
摘要
申请公布号
US2390642(A)
申请公布日期
1945.12.11
申请号
US19430479414
申请日期
1943.03.17
申请人
DURAMETALLIC CORPORATION
发明人
CURRY PAUL N.
分类号
F16K17/00
主分类号
F16K17/00
代理机构
代理人
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地址
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