,申请号JP19900017718U-传众专利搜索

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发明名称
摘要
申请公布号	JPH03109196(U)	申请公布日期	1991.11.08
申请号	JP19900017718U	申请日期	1990.02.23
申请人		发明人
分类号	G04B19/00;G04B45/00;(IPC1-7):G04B45/00	主分类号	G04B19/00
代理机构		代理人
主权项
地址

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