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发明名称
Flushing valve
摘要
申请公布号
US1742973(A)
申请公布日期
1930.01.07
申请号
US19280271362
申请日期
1928.04.19
申请人
SCHOSSOW FREDERICK A
发明人
SCHOSSOW FREDERICK A.
分类号
E03D3/06
主分类号
E03D3/06
代理机构
代理人
主权项
地址
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