Ball point needle for phonographs,申请号US19490124210-传众专利搜索

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法人/股东/高管

发明名称	Ball point needle for phonographs
摘要
申请公布号	US2594759(A)	申请公布日期	1952.04.29
申请号	US19490124210	申请日期	1949.10.28
申请人	FISCHER HERBERT A	发明人	FISCHER HERBERT A.
分类号	G11B3/48	主分类号	G11B3/48
代理机构		代理人
主权项
地址

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