Sign element and a method of manufacture,申请号US19390281071-传众专利搜索

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发明名称	Sign element and a method of manufacture
摘要
申请公布号	US2211937(A)	申请公布日期	1940.08.20
申请号	US19390281071	申请日期	1939.06.26
申请人	NORTH AMERICAN SERVICE CO.	发明人	REGISTER EVERETT L.
分类号	G09F7/14	主分类号	G09F7/14
代理机构		代理人
主权项
地址

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