Selector switch circuit,申请号US19420458948-传众专利搜索

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发明名称	Selector switch circuit
摘要
申请公布号	US2336861(A)	申请公布日期	1943.12.14
申请号	US19420458948	申请日期	1942.09.19
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	GRAY CECIL R.
分类号	H01H63/20	主分类号	H01H63/20
代理机构		代理人
主权项
地址

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