Key-identifying device,申请号US19360078232-传众专利搜索

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发明名称	Key-identifying device
摘要
申请公布号	US2109268(A)	申请公布日期	1938.02.22
申请号	US19360078232	申请日期	1936.05.06
申请人	I ANSON CHARLES F	发明人	I'ANSON CHARLES F.
分类号	G09F3/12	主分类号	G09F3/12
代理机构		代理人
主权项
地址

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