Fastener for typewriters,申请号US19280320605-传众专利搜索

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发明名称	Fastener for typewriters
摘要
申请公布号	US1758646(A)	申请公布日期	1930.05.13
申请号	US19280320605	申请日期	1928.11.20
申请人	QUEENS TYPEWRITER & STATIONERY CORP	发明人	BROWN ALEXANDER P.
分类号	B41J29/04	主分类号	B41J29/04
代理机构		代理人
主权项
地址

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