System employing space-discharge device,申请号US19290350952-传众专利搜索

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发明名称	System employing space-discharge device
摘要
申请公布号	US1762737(A)	申请公布日期	1930.06.10
申请号	US19290350952	申请日期	1929.03.29
申请人	BELL TELEPHONE LABORATORIES, INCORPORATED	发明人	PETERSON EUGENE
分类号	H03C5/00	主分类号	H03C5/00
代理机构		代理人
主权项
地址

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