Electroresponsive device with time delay,申请号US19470793037-传众专利搜索

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发明名称	Electroresponsive device with time delay
摘要
申请公布号	US2540135(A)	申请公布日期	1951.02.06
申请号	US19470793037	申请日期	1947.12.20
申请人	JOHN B. PIERCE FOUNDATION	发明人	O'BRIEN JOSEPH F.;PODHORZER EMIL
分类号	H01H50/88	主分类号	H01H50/88
代理机构		代理人
主权项
地址

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