Ceramic character or symbol,申请号US19290404048-传众专利搜索

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发明名称	Ceramic character or symbol
摘要
申请公布号	US1859792(A)	申请公布日期	1932.05.24
申请号	US19290404048	申请日期	1929.11.01
申请人	METLOX CORPORATION, LTD.	发明人	PROUTY WILLIS O.
分类号	G09F7/02	主分类号	G09F7/02
代理机构		代理人
主权项
地址

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