Memorandum ticket for telephone service,申请号US19300437179-传众专利搜索

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发明名称	Memorandum ticket for telephone service
摘要
申请公布号	US1784813(A)	申请公布日期	1930.12.16
申请号	US19300437179	申请日期	1930.03.19
申请人	COX GEORGE D	发明人	COX GEORGE D.
分类号	B42D5/00;B42D15/00	主分类号	B42D5/00
代理机构		代理人
主权项
地址

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