Teletypewriter secrecy system,申请号US19420425293-传众专利搜索

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发明名称	Teletypewriter secrecy system
摘要
申请公布号	US2401477(A)	申请公布日期	1946.06.04
申请号	US19420425293	申请日期	1942.01.01
申请人	AMERICAN TELEPHONE AND TELEGRAPH COMPANY	发明人	GREENE MONTE LEE
分类号	H04L9/18	主分类号	H04L9/18
代理机构		代理人
主权项
地址

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