TELEPHONE CALL COST CALCULATING MACHINE,申请号CAD419002-传众专利搜索

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发明名称	TELEPHONE CALL COST CALCULATING MACHINE
摘要
申请公布号	CA419002(A)	申请公布日期	1944.03.14
申请号	CAD419002	申请日期
申请人	ASSOCIATED TELEPHONE AND TELEGRAPH COMPANY	发明人	BERNARD D. WILLIS
分类号		主分类号
代理机构		代理人
主权项
地址

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