Paper holder for writing machines,申请号US19580725253-传众专利搜索

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发明名称	Paper holder for writing machines
摘要
申请公布号	US2930468(A)	申请公布日期	1960.03.29
申请号	US19580725253	申请日期	1958.03.31
申请人	SPERRY RAND CORPORATION	发明人	ISRAELSON EVERT G.
分类号	B41J13/20	主分类号	B41J13/20
代理机构		代理人
主权项
地址

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