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发明名称
Valve construction
摘要
申请公布号
US2177349(A)
申请公布日期
1939.10.24
申请号
US19370182540
申请日期
1937.12.30
申请人
WILLIAM C. BIDDLE
发明人
JR. ELBERT A. CORBIN,
分类号
F16K11/18
主分类号
F16K11/18
代理机构
代理人
主权项
地址
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