TELEPHONE SIGNALLING APPARATUS,申请号CAD382143-传众专利搜索

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发明名称	TELEPHONE SIGNALLING APPARATUS
摘要
申请公布号	CA382143(A)	申请公布日期	1939.06.20
申请号	CAD382143	申请日期
申请人	ASSOCIATED TELEPHONE AND TELEGRAPH COMPANY	发明人	THEODORE CHARLES RIEBE
分类号		主分类号
代理机构		代理人
主权项
地址

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