Bipolar transistor amplifier for telephone set use,申请号US19630331062-传众专利搜索

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发明名称	Bipolar transistor amplifier for telephone set use
摘要
申请公布号	US3299215(A)	申请公布日期	1967.01.17
申请号	US19630331062	申请日期	1963.12.16
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	MINES JAMES A.
分类号	H04M1/60	主分类号	H04M1/60
代理机构		代理人
主权项
地址

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