Tone arm control mechanism for phonographs,申请号US19390300012-传众专利搜索

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发明名称	Tone arm control mechanism for phonographs
摘要
申请公布号	US2244157(A)	申请公布日期	1941.06.03
申请号	US19390300012	申请日期	1939.10.18
申请人	THE RUDOLPH WURLITZER COMPANY	发明人	HOKANSON OTTO A.
分类号	G11B17/18	主分类号	G11B17/18
代理机构		代理人
主权项
地址

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