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发明名称
DRAUGHT EXCLUDER
摘要
申请公布号
GB2052611(B)
申请公布日期
1983.04.07
申请号
GB19800015963
申请日期
1980.05.14
申请人
DUMENIL C;DUMENIL L
发明人
分类号
E06B7/20;(IPC1-7):E06B7/20
主分类号
E06B7/20
代理机构
代理人
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