Frequency control distribution,申请号US19340741980-传众专利搜索

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发明名称	Frequency control distribution
摘要
申请公布号	US2036383(A)	申请公布日期	1936.04.07
申请号	US19340741980	申请日期	1934.08.29
申请人	AMERICAN TELEPHONE AND TELEGRAPH COMPANY	发明人	AFFEL HERMAN ANDREW
分类号	H04H20/67	主分类号	H04H20/67
代理机构		代理人
主权项
地址

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