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发明名称
Shut-off valve
摘要
申请公布号
US2151296(A)
申请公布日期
1939.03.21
申请号
US19370178243
申请日期
1937.12.06
申请人
CHAMPION CORPORATION
发明人
KNOERZER OTTO
分类号
F16K1/10
主分类号
F16K1/10
代理机构
代理人
主权项
地址
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