Pull chain and wall switch,申请号US19340751653-传众专利搜索

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发明名称	Pull chain and wall switch
摘要
申请公布号	US2054502(A)	申请公布日期	1936.09.15
申请号	US19340751653	申请日期	1934.11.05
申请人	HOWARD HALLETT	发明人	HALLETT HOWARD
分类号	G04F1/00;H01H17/00	主分类号	G04F1/00
代理机构		代理人
主权项
地址

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