Focusing hand lamp,申请号US19260098806-传众专利搜索

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发明名称	Focusing hand lamp
摘要
申请公布号	US1825354(A)	申请公布日期	1931.09.29
申请号	US19260098806	申请日期	1926.03.31
申请人	NATIONAL CARBON COMPANY, INC.	发明人	JONES HOMER WALTER
分类号	F21L4/00;F21V19/02	主分类号	F21L4/00
代理机构		代理人
主权项
地址

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