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发明名称	INTERNAL DRAUGHT EXCLUDER
摘要
申请公布号	GB9303530(D0)	申请公布日期	1993.04.07
申请号	GB19930003530	申请日期	1993.02.22
申请人	SMITH LESLIE A.	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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