CHALKBOARD DUSTER BLOCK CLEANER,申请号ZA19890002050-传众专利搜索

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发明名称	CHALKBOARD DUSTER BLOCK CLEANER
摘要
申请公布号	ZA8902050(B)	申请公布日期	1989.11.29
申请号	ZA19890002050	申请日期	1989.03.17
申请人	ANDRIES HENDRIK POTGIETER	发明人	ANDRIES HENDRIK POTGIETER
分类号	B43L	主分类号	B43L
代理机构		代理人
主权项
地址

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