Water-metachromatic cloth sheet, toy set using the same, and writing instrument for water-metachromatic members,申请号KR20000058110-传众专利搜索

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发明名称	Water-metachromatic cloth sheet, toy set using the same, and writing instrument for water-metachromatic members
摘要
申请公布号	KR100697964(B1)	申请公布日期	2007.03.23
申请号	KR20000058110	申请日期	2000.10.04
申请人		发明人
分类号	A63H33/22;G09B11/00;A63H33/00;B41M3/00;B43K11/00;B43K27/08;B44D2/00;B44F1/10;D06M11/79;D06P1/00;D06Q1/10	主分类号	A63H33/22
代理机构		代理人
主权项
地址

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