,申请号JP19790022755U-传众专利搜索

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发明名称
摘要
申请公布号	JPS55122190(U)	申请公布日期	1980.08.30
申请号	JP19790022755U	申请日期	1979.02.23
申请人		发明人
分类号	G04G21/00;G04G99/00;(IPC1-7):G04G1/00	主分类号	G04G21/00
代理机构		代理人
主权项
地址

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