,申请号JP19900405741U-传众专利搜索

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发明名称
摘要
申请公布号	JPH0492887(U)	申请公布日期	1992.08.12
申请号	JP19900405741U	申请日期	1990.12.28
申请人		发明人
分类号	H04H20/00;H04H60/15;H04H60/23;H04K1/04;H04L9/00;H04L9/10;H04L9/34;H04N5/445;H04N5/66;H04N7/16;H04N7/167;H04N7/20;(IPC1-7):H04N7/20;H04H1/00	主分类号	H04H20/00
代理机构		代理人
主权项
地址

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