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发明名称
Pipe cleaner
摘要
申请公布号
US2803026(A)
申请公布日期
1957.08.20
申请号
US19540444997
申请日期
1954.07.22
申请人
KOFFSKI JOHN H
发明人
KOFFSKI JOHN H.
分类号
B08B9/04
主分类号
B08B9/04
代理机构
代理人
主权项
地址
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