SWITCHING ARRANGEMENTS FOR TELEPHONE SWITCHBOARDS,申请号IL19770052671-传众专利搜索

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发明名称	SWITCHING ARRANGEMENTS FOR TELEPHONE SWITCHBOARDS
摘要
申请公布号	IL52671(D0)	申请公布日期	1977.10.31
申请号	IL19770052671	申请日期	1977.08.05
申请人	SIEMENS AG	发明人
分类号	H04Q3/47	主分类号	H04Q3/47
代理机构		代理人
主权项
地址

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