Mechanical pencil assembly,申请号US19630274959-传众专利搜索

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发明名称	Mechanical pencil assembly
摘要
申请公布号	US3179089(A)	申请公布日期	1965.04.20
申请号	US19630274959	申请日期	1963.04.23
申请人	CIVITARESE JOSEPH A	发明人	CIVITARESE JOSEPH A.
分类号	B43K21/00	主分类号	B43K21/00
代理机构		代理人
主权项
地址

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