Crossbar-switch selector system,申请号US19540476747-传众专利搜索

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发明名称	Crossbar-switch selector system
摘要
申请公布号	US2768241(A)	申请公布日期	1956.10.23
申请号	US19540476747	申请日期	1954.12.21
申请人	INTERNATIONAL TELEPHONE AND TELEGRAPH CORPORATION	发明人	HUTTON ROBERT W.
分类号	H01H67/26;H04Q3/00	主分类号	H01H67/26
代理机构		代理人
主权项
地址

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