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发明名称
Backflushing method and apparatus
摘要
申请公布号
GB9918923(D0)
申请公布日期
1999.10.13
申请号
GB19990018923
申请日期
1999.08.12
申请人
HOSFORD, JAMES P
发明人
分类号
主分类号
代理机构
代理人
主权项
地址
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