TELEPHONE TESTING ARRANGEMENT,申请号CAD336321-传众专利搜索

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发明名称	TELEPHONE TESTING ARRANGEMENT
摘要
申请公布号	CA336321(A)	申请公布日期	1933.10.10
申请号	CAD336321	申请日期
申请人	THE NORTHERN ELECTRIC COMPANY	发明人	JOHN WICKS
分类号		主分类号
代理机构		代理人
主权项
地址

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