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发明名称
Valve
摘要
申请公布号
US2105183(A)
申请公布日期
1938.01.11
申请号
US19340753573
申请日期
1934.11.19
申请人
COVER HARVEY S
发明人
COVER HARVEY S.
分类号
F16K15/14
主分类号
F16K15/14
代理机构
代理人
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