PENCIL LEAD AND ITS PRODUCTION,申请号JP19910058141-传众专利搜索

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发明名称	PENCIL LEAD AND ITS PRODUCTION
摘要
申请公布号	JPH04272971(A)	申请公布日期	1992.09.29
申请号	JP19910058141	申请日期	1991.02.27
申请人	PENTEL KK	发明人	OKABAYASHI HIROAKI;SHIMOYAMA SHIN
分类号	B43K19/00;C09D13/00	主分类号	B43K19/00
代理机构		代理人
主权项
地址

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