Attachment for writing machines,申请号US19320608231-传众专利搜索

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发明名称	Attachment for writing machines
摘要
申请公布号	US2067210(A)	申请公布日期	1937.01.12
申请号	US19320608231	申请日期	1932.04.29
申请人	SHERMAN JOHN Q	发明人	SHERMAN JOHN Q.
分类号	B41J11/28	主分类号	B41J11/28
代理机构		代理人
主权项
地址

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