Scanning of sound records,申请号US19490117057-传众专利搜索

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发明名称	Scanning of sound records
摘要
申请公布号	US2575445(A)	申请公布日期	1951.11.20
申请号	US19490117057	申请日期	1949.09.21
申请人	ANTHONY E. NEIDT;GEORGE E. NEIDT	发明人	GERMER WALTER ERNST
分类号	G11B7/003;G11B7/12	主分类号	G11B7/003
代理机构		代理人
主权项
地址

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