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发明名称
摘要
申请公布号	JP2696410(B2)	申请公布日期	1998.01.14
申请号	JP19890275664	申请日期	1989.10.23
申请人		发明人
分类号	G09B29/10;G01C21/00;G08G1/0969;G09F9/00;(IPC1-7):G01C21/00;G08G1/096	主分类号	G09B29/10
代理机构		代理人
主权项
地址

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