Current collector for trolley wires,申请号US19290411487-传众专利搜索

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发明名称	Current collector for trolley wires
摘要
申请公布号	US1808518(A)	申请公布日期	1931.06.02
申请号	US19290411487	申请日期	1929.12.04
申请人	FRED BOARD	发明人	BOARD FRED
分类号	H01R11/14	主分类号	H01R11/14
代理机构		代理人
主权项
地址

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