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发明名称
Gate valve
摘要
申请公布号
US2636713(A)
申请公布日期
1953.04.28
申请号
US19480012459
申请日期
1948.03.01
申请人
HAMER LELAND S
发明人
HAMER LELAND S.
分类号
F16K27/04
主分类号
F16K27/04
代理机构
代理人
主权项
地址
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