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发明名称
摘要
申请公布号	JPH0485195(U)	申请公布日期	1992.07.23
申请号	JP19900126201U	申请日期	1990.11.28
申请人		发明人
分类号	G04B39/02;(IPC1-7):G04B39/02	主分类号	G04B39/02
代理机构		代理人
主权项
地址

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