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发明名称
Strainer
摘要
申请公布号
US2792574(A)
申请公布日期
1957.05.21
申请号
US19560557327
申请日期
1956.01.04
申请人
DONALD C. AUSTIN
发明人
AUSTIN ELLSWORTH W.
分类号
E03C1/262
主分类号
E03C1/262
代理机构
代理人
主权项
地址
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