FIXED TYPE WIRETAPPING PREVENTING DEVICE FOR TELEPHONE,申请号JP19910212867-传众专利搜索

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发明名称	FIXED TYPE WIRETAPPING PREVENTING DEVICE FOR TELEPHONE
摘要
申请公布号	JPH05136873(A)	申请公布日期	1993.06.01
申请号	JP19910212867	申请日期	1991.07.30
申请人	NIPPON DENSO KIKI:KK	发明人	TAKAFUSA HIDEKIYO
分类号	H04M1/68	主分类号	H04M1/68
代理机构		代理人
主权项
地址

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