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发明名称
Pipe line washing system
摘要
申请公布号
US2939466(A)
申请公布日期
1960.06.07
申请号
US19570693065
申请日期
1957.10.29
申请人
ROCKWOOD & CO.
发明人
HILL HENRY H.
分类号
A01J7/02;B08B9/032
主分类号
A01J7/02
代理机构
代理人
主权项
地址
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