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发明名称
Method of and apparatus for fishway collecting systems
摘要
申请公布号
US2171560(A)
申请公布日期
1939.09.05
申请号
US19380193293
申请日期
1938.03.01
申请人
HOLMES HARLAN B;BLOOD HENRY F;BELL MILO C
发明人
HOLMES HARLAN B.;BLOOD HENRY F.;BELL MILO C.
分类号
E02B8/08
主分类号
E02B8/08
代理机构
代理人
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地址
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