,申请号JP19780020347U-传众专利搜索

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发明名称
摘要
申请公布号	JPS54124566(U)	申请公布日期	1979.08.31
申请号	JP19780020347U	申请日期	1978.02.21
申请人		发明人
分类号	G04B19/21;G04B19/00;G04B19/22;(IPC1-7):G04B19/22	主分类号	G04B19/21
代理机构		代理人
主权项
地址

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