Connector means for a tandem writing unit,申请号US19570635030-传众专利搜索

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发明名称	Connector means for a tandem writing unit
摘要
申请公布号	US3019768(A)	申请公布日期	1962.02.06
申请号	US19570635030	申请日期	1957.01.18
申请人	PAPER MATE MANUFACTURING COMPANY	发明人	SEYER FRANK H.;MARCOTTE JAMES L.
分类号	B43K7/12	主分类号	B43K7/12
代理机构		代理人
主权项
地址

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