Teletypewriter,申请号US19550518774-传众专利搜索

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发明名称	Teletypewriter
摘要
申请公布号	US2859277(A)	申请公布日期	1958.11.04
申请号	US19550518774	申请日期	1955.06.29
申请人	DUALEX CORPORATION	发明人	PRATT HARADEN
分类号	H04L17/00	主分类号	H04L17/00
代理机构		代理人
主权项
地址

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