Remote-control switch for pumping systems,申请号US19280287875-传众专利搜索

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发明名称	Remote-control switch for pumping systems
摘要
申请公布号	US1792245(A)	申请公布日期	1931.02.10
申请号	US19280287875	申请日期	1928.06.23
申请人	THE ROTAWASHER CORPORATION	发明人	ROBINSON FREDERICK E.
分类号	H01H3/02	主分类号	H01H3/02
代理机构		代理人
主权项
地址

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