Automatic recording and reproducing device,申请号US19390281209-传众专利搜索

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发明名称	Automatic recording and reproducing device
摘要
申请公布号	US2229430(A)	申请公布日期	1941.01.21
申请号	US19390281209	申请日期	1939.06.26
申请人	WARNER JESSE J	发明人	WARNER JESSE J.
分类号	G07F11/46;G07F17/30	主分类号	G07F11/46
代理机构		代理人
主权项
地址

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