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发明名称
Drain pipe joint
摘要
申请公布号
US2981072(A)
申请公布日期
1961.04.25
申请号
US19570641528
申请日期
1957.02.21
申请人
BREWINGTON PHILIP J
发明人
BREWINGTON PHILIP J.
分类号
E02B11/00
主分类号
E02B11/00
代理机构
代理人
主权项
地址
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