Intra-plant voice communication system,申请号US19590825086-传众专利搜索

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发明名称	Intra-plant voice communication system
摘要
申请公布号	US3080454(A)	申请公布日期	1963.03.05
申请号	US19590825086	申请日期	1959.07.06
申请人	GAI-TRONICS CORPORATION	发明人	WENRICH CARL M.;RADOMSKI JOSEPH J.
分类号	H04M9/00	主分类号	H04M9/00
代理机构		代理人
主权项
地址

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