Speed-changing mechanism for phonographs,申请号US19560593670-传众专利搜索

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发明名称	Speed-changing mechanism for phonographs
摘要
申请公布号	US2898771(A)	申请公布日期	1959.08.11
申请号	US19560593670	申请日期	1956.06.25
申请人	V-M CORPORATION	发明人	FAULKNER WILLARD J.
分类号	G11B19/265	主分类号	G11B19/265
代理机构		代理人
主权项
地址

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