Frequency converter control,申请号US19490102478-传众专利搜索

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发明名称	Frequency converter control
摘要
申请公布号	US2619625(A)	申请公布日期	1952.11.25
申请号	US19490102478	申请日期	1949.07.01
申请人	WESTINGHOUSE ELECTRIC CORPORATION	发明人	PARSONS JOHN R.
分类号	B23K11/24	主分类号	B23K11/24
代理机构		代理人
主权项
地址

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