Dial register for telephone numbers,申请号US19320604735-传众专利搜索

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发明名称	Dial register for telephone numbers
摘要
申请公布号	US1951022(A)	申请公布日期	1934.03.13
申请号	US19320604735	申请日期	1932.04.12
申请人	IVERSON HANS P	发明人	IVERSON HANS P.
分类号	G09F11/23	主分类号	G09F11/23
代理机构		代理人
主权项
地址

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