Variable rheostat,申请号US19310544872-传众专利搜索

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发明名称	Variable rheostat
摘要
申请公布号	US1885373(A)	申请公布日期	1932.11.01
申请号	US19310544872	申请日期	1931.06.16
申请人	BENJAMIN PLANCHE RENE	发明人	PLANCHE RENE BENJAMIN
分类号	H01C10/02;H02P1/36	主分类号	H01C10/02
代理机构		代理人
主权项
地址

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