Ratio changer,申请号US19550513331-传众专利搜索

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发明名称	Ratio changer
摘要
申请公布号	US2903100(A)	申请公布日期	1959.09.08
申请号	US19550513331	申请日期	1955.06.06
申请人	WAGNER ELECTRIC CORPORATION	发明人	FREEMAN WALTER R.
分类号	B60T8/26	主分类号	B60T8/26
代理机构		代理人
主权项
地址

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