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发明名称
Drainage intake
摘要
申请公布号
US2354994(A)
申请公布日期
1944.08.01
申请号
US19410411853
申请日期
1941.09.22
申请人
HOLLAND GEORGE W
发明人
HOLLAND GEORGE W.
分类号
E01C11/22
主分类号
E01C11/22
代理机构
代理人
主权项
地址
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