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发明名称
LINING OF PIPELINES/PASSAGEWAYS
摘要
申请公布号
GB8432663(D0)
申请公布日期
1985.02.06
申请号
GB19840032663
申请日期
1984.12.27
申请人
EDEALPHA LTD
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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