Method of and apparatus for differentially applying power,申请号US19240738657-传众专利搜索

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发明名称	Method of and apparatus for differentially applying power
摘要
申请公布号	US1791498(A)	申请公布日期	1931.02.10
申请号	US19240738657	申请日期	1924.09.19
申请人	HALLIBURTON	发明人	HALLIBURTON ERLE P.;STODDARD ALBERT D.
分类号	H02P5/68	主分类号	H02P5/68
代理机构		代理人
主权项
地址

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