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发明名称
Balanced flexible curtain type valve
摘要
申请公布号
US2679863(A)
申请公布日期
1954.06.01
申请号
US19510236325
申请日期
1951.07.12
申请人
TUCKER WELSEY L
发明人
TUCKER WELSEY L.
分类号
A01K7/04;F16K7/18;F16K31/24
主分类号
A01K7/04
代理机构
代理人
主权项
地址
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