Hand lamp switch,申请号US19400364677-传众专利搜索

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发明名称	Hand lamp switch
摘要
申请公布号	US2288808(A)	申请公布日期	1942.07.07
申请号	US19400364677	申请日期	1940.11.07
申请人	WESTERN CARTRIDGE COMPANY	发明人	KOPP WALTER RICHARD
分类号	F21L4/00	主分类号	F21L4/00
代理机构		代理人
主权项
地址

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