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发明名称
Pipe cleaning device
摘要
申请公布号
US2144419(A)
申请公布日期
1939.01.17
申请号
US19370172941
申请日期
1937.11.05
申请人
SLOCUMB LEITH H
发明人
SLOCUMB LEITH H.
分类号
A24F9/12
主分类号
A24F9/12
代理机构
代理人
主权项
地址
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