Electric valve converting system,申请号US19390249294-传众专利搜索

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发明名称	Electric valve converting system
摘要
申请公布号	US2190524(A)	申请公布日期	1940.02.13
申请号	US19390249294	申请日期	1939.01.04
申请人	GENERAL ELECTRIC COMPANY	发明人	TODA YOSHIAKI
分类号	H02M7/15	主分类号	H02M7/15
代理机构		代理人
主权项
地址

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