Eraser retaining and adjusting mechanism,申请号US19630316285-传众专利搜索

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发明名称	Eraser retaining and adjusting mechanism
摘要
申请公布号	US3203401(A)	申请公布日期	1965.08.31
申请号	US19630316285	申请日期	1963.10.15
申请人	W. A. SHEAFFER PEN COMPANY	发明人	SPECHT THEODORE R.
分类号	B43K29/02	主分类号	B43K29/02
代理机构		代理人
主权项
地址

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