Speed change for recording apparatus,申请号US19400360288-传众专利搜索

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发明名称	Speed change for recording apparatus
摘要
申请公布号	US2241013(A)	申请公布日期	1941.05.06
申请号	US19400360288	申请日期	1940.10.08
申请人	WILCOX-GAY CORPORATION	发明人	GAY PAUL STEAD
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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