Adjustable speed control,申请号US19340751276-传众专利搜索

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发明名称	Adjustable speed control
摘要
申请公布号	US2087782(A)	申请公布日期	1937.07.20
申请号	US19340751276	申请日期	1934.11.03
申请人	ROSSMAN ENGINEERING COMPANY	发明人	ROSSMAN ALLEN M.
分类号	H02P5/74	主分类号	H02P5/74
代理机构		代理人
主权项
地址

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