4 thought feedback unit,申请号GB20020023802-传众专利搜索

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发明名称	4 thought feedback unit
摘要
申请公布号	GB0223802(D0)	申请公布日期	2002.11.20
申请号	GB20020023802	申请日期	2002.10.12
申请人	SMITH, RUTH	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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