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发明名称
Pipe cleaner
摘要
申请公布号
US2360560(A)
申请公布日期
1944.10.17
申请号
US19430510441
申请日期
1943.11.16
申请人
WILLIAM GROCOFF
发明人
GROCOFF WILLIAM
分类号
A24F9/10
主分类号
A24F9/10
代理机构
代理人
主权项
地址
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