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发明名称
摘要
申请公布号	JPS5185759(U)	申请公布日期	1976.07.09
申请号	JP19750001542U	申请日期	1974.12.28
申请人		发明人
分类号	(IPC1-7):G04B45/00	主分类号	(IPC1-7):G04B45/00
代理机构		代理人
主权项
地址

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