Self-cleaning electric switch,申请号US19540454449-传众专利搜索

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发明名称	Self-cleaning electric switch
摘要
申请公布号	US2717297(A)	申请公布日期	1955.09.06
申请号	US19540454449	申请日期	1954.09.07
申请人	WALKER NEVILLE E	发明人	WALKER NEVILLE E.
分类号	G03B7/085	主分类号	G03B7/085
代理机构		代理人
主权项
地址

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