Protraction-retraction mechanism for writing instruments,申请号US19590841243-传众专利搜索

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发明名称	Protraction-retraction mechanism for writing instruments
摘要
申请公布号	US3051132(A)	申请公布日期	1962.08.28
申请号	US19590841243	申请日期	1959.09.21
申请人	JOHMANN FRANK T	发明人	JOHMANN FRANK T.
分类号	B43K24/08;G09F23/00	主分类号	B43K24/08
代理机构		代理人
主权项
地址

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