Recorder,申请号US19410400872-传众专利搜索

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发明名称	Recorder
摘要
申请公布号	US2332475(A)	申请公布日期	1943.10.19
申请号	US19410400872	申请日期	1941.07.02
申请人	THE SOREN CORPORATION	发明人	SORENSEN EDWARD M.
分类号	G09B9/24	主分类号	G09B9/24
代理机构		代理人
主权项
地址

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