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发明名称
Pipe cleaner
摘要
申请公布号
US2189556(A)
申请公布日期
1940.02.06
申请号
US19380231926
申请日期
1938.09.27
申请人
YOUNGHUSBAND JAMES L
发明人
YOUNGHUSBAND JAMES L.
分类号
A24F9/06
主分类号
A24F9/06
代理机构
代理人
主权项
地址
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