TELEPHONE SYSTEM,申请号CAD344433-传众专利搜索

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发明名称	TELEPHONE SYSTEM
摘要
申请公布号	CA344433(A)	申请公布日期	1934.09.04
申请号	CAD344433	申请日期
申请人	THE NORTHERN ELECTRIC COMPANY	发明人	HOWARD H. SMITH
分类号		主分类号
代理机构		代理人
主权项
地址

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