Record changing mechanism,申请号US19300500862-传众专利搜索

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发明名称	Record changing mechanism
摘要
申请公布号	US1970691(A)	申请公布日期	1934.08.21
申请号	US19300500862	申请日期	1930.12.08
申请人	THE CAPEHART CORPORATION	发明人	COLLISON EDWARD E.;DEGENHART ERNEST
分类号	G11B17/16	主分类号	G11B17/16
代理机构		代理人
主权项
地址

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