Trackball assembly including a loosely mounted ball support,申请号US19910796296-传众专利搜索

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发明名称	Trackball assembly including a loosely mounted ball support
摘要
申请公布号	US5171978(A)	申请公布日期	1992.12.15
申请号	US19910796296	申请日期	1991.11.22
申请人	LEXMARK INTERNATIONAL, INC.	发明人	MIMLITCH, KENNETH H.;POLLARD, EDWARD E.
分类号	G06F3/033	主分类号	G06F3/033
代理机构		代理人
主权项
地址

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