VIDEOCASSETTE TAPE SPOOL HAVING ECONOMICAL WEAR BUTTON,申请号EP19840307045-传众专利搜索

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发明名称	VIDEOCASSETTE TAPE SPOOL HAVING ECONOMICAL WEAR BUTTON
摘要
申请公布号	EP0140636(B1)	申请公布日期	1988.08.17
申请号	EP19840307045	申请日期	1984.10.15
申请人	MINNESOTA MINING AND MANUFACTURING COMPANY	发明人	WULFING, JAMES J. C/O MINNESOTA MINING AND;ROOD, ROBERT M. C/O MINNESOTA MINING AND
分类号	G11B23/037;G11B23/087;(IPC1-7):G11B23/087	主分类号	G11B23/037
代理机构		代理人
主权项
地址

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