Apparatus for displaying pictorial representations,申请号US19480041508-传众专利搜索

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发明名称	Apparatus for displaying pictorial representations
摘要
申请公布号	US2572454(A)	申请公布日期	1951.10.23
申请号	US19480041508	申请日期	1948.07.30
申请人	DOWN	发明人	DOWN JAMES W.;MILLER DANIEL R.
分类号	A47G1/14	主分类号	A47G1/14
代理机构		代理人
主权项
地址

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