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发明名称
Drain cleaner
摘要
申请公布号
US2177566(A)
申请公布日期
1939.10.24
申请号
US19370159423
申请日期
1937.08.16
申请人
CLAUDE HORWITZ
发明人
HORWITZ CLAUDE
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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