SWITCHING SYSTEM FOR BUSY EXTENSION,申请号JP19880292578-传众专利搜索

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发明名称	SWITCHING SYSTEM FOR BUSY EXTENSION
摘要
申请公布号	JPH02137558(A)	申请公布日期	1990.05.25
申请号	JP19880292578	申请日期	1988.11.18
申请人	FUJITSU LTD	发明人	ITOI KOJI;YOSHIZAKI HISAHIRO
分类号	H04M3/44;H04M3/42	主分类号	H04M3/44
代理机构		代理人
主权项
地址

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