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发明名称
Drain flushing device
摘要
申请公布号
US3023428(A)
申请公布日期
1962.03.06
申请号
US19600014877
申请日期
1960.03.14
申请人
MICHAEL C. LATTA;HARLEY R. MCKIBBEN
发明人
OTTESON NORMAN H.
分类号
E03C1/306
主分类号
E03C1/306
代理机构
代理人
主权项
地址
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