Method and apparatus for forming raised characters and lines,申请号US19490100938-传众专利搜索

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发明名称	Method and apparatus for forming raised characters and lines
摘要
申请公布号	US2616198(A)	申请公布日期	1952.11.04
申请号	US19490100938	申请日期	1949.06.23
申请人	SEWELL HARRY P	发明人	SEWELL HARRY P.
分类号	G09B21/00	主分类号	G09B21/00
代理机构		代理人
主权项
地址

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