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发明名称	PARTY LINE TELEPHONE SYSTEMS
摘要
申请公布号	CA568131(A)	申请公布日期	1958.12.30
申请号	CAD568131	申请日期
申请人	SIEMENS BROTHERS AND CO. LIMITED	发明人	BEATRICE M. ROBERT;NORMAN BARROW;HAROLD G. EDWARDS
分类号		主分类号
代理机构		代理人
主权项
地址

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