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发明名称
Valve
摘要
申请公布号
US2253371(A)
申请公布日期
1941.08.19
申请号
US19390257691
申请日期
1939.02.21
申请人
FISCHER LEO A
发明人
FISCHER LEO A.
分类号
F16K1/48
主分类号
F16K1/48
代理机构
代理人
主权项
地址
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