ACTIVE AND RESERVE SWITCHING DEVICE,申请号JP19910274309-传众专利搜索

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发明名称	ACTIVE AND RESERVE SWITCHING DEVICE
摘要
申请公布号	JPH05114884(A)	申请公布日期	1993.05.07
申请号	JP19910274309	申请日期	1991.10.22
申请人	NIPPON TELEGR & TELEPH CORP <NTT>	发明人	TADA YASUHIKO;NOSU KIYOSHI
分类号	H04B1/74	主分类号	H04B1/74
代理机构		代理人
主权项
地址

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