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经营范围
发明名称
Sluiceway regulator
摘要
申请公布号
US2009234(A)
申请公布日期
1935.07.23
申请号
US19340737398
申请日期
1934.07.28
申请人
LEONARD JAMES A
发明人
LEONARD JAMES A.
分类号
E02B7/42
主分类号
E02B7/42
代理机构
代理人
主权项
地址
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