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发明名称
Flow control gate
摘要
申请公布号
US2772850(A)
申请公布日期
1956.12.04
申请号
US19550507072
申请日期
1955.05.09
申请人
EATON NELSON C
发明人
EATON NELSON C.
分类号
E02B13/02
主分类号
E02B13/02
代理机构
代理人
主权项
地址
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