CIRCUIT ARRANGEMENT FOR DATA PROCESSING TELEPHONE EXCHANGE INSTALLATIONS WITH SYSTEMS FOR MESSAGE TRANSMISSION,申请号USD3591722-传众专利搜索

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发明名称	CIRCUIT ARRANGEMENT FOR DATA PROCESSING TELEPHONE EXCHANGE INSTALLATIONS WITH SYSTEMS FOR MESSAGE TRANSMISSION
摘要
申请公布号	US3591722(A)	申请公布日期	1971.07.06
申请号	USD3591722	申请日期	1969.02.24
申请人	SIEMENS AG.	发明人	HELMUT PALSA
分类号	H04M15/00;H04L1/00;H04Q3/545;(IPC1-7):H04M11/06	主分类号	H04M15/00
代理机构		代理人
主权项
地址

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