Manuscript manipulating device for speakers,申请号US19380229712-传众专利搜索

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发明名称	Manuscript manipulating device for speakers
摘要
申请公布号	US2188210(A)	申请公布日期	1940.01.23
申请号	US19380229712	申请日期	1938.09.13
申请人	FOLLETT SMITH RUSSELL	发明人	SMITH RUSSELL FOLLETT
分类号	B42D19/00	主分类号	B42D19/00
代理机构		代理人
主权项
地址

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