ELECTRICAL SIGNALLING ARRANGEMENT,申请号CAD444727-传众专利搜索

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发明名称	ELECTRICAL SIGNALLING ARRANGEMENT
摘要
申请公布号	CA444727(A)	申请公布日期	1947.10.28
申请号	CAD444727	申请日期
申请人	AUTOMATIC TELEPHONE AND ELECTRIC COMPANY LIMITED	发明人	REGINALD TAYLOR;GEORGE THOMAS BAKER
分类号		主分类号
代理机构		代理人
主权项
地址

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