Hanger attachment for lighting fixtures,申请号US19450616327-传众专利搜索

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发明名称	Hanger attachment for lighting fixtures
摘要
申请公布号	US2507308(A)	申请公布日期	1950.05.09
申请号	US19450616327	申请日期	1945.09.14
申请人	A. L. SMITH IRON COMPANY	发明人	KRUGER MICHAEL H.
分类号	F21V21/00;G09F13/04	主分类号	F21V21/00
代理机构		代理人
主权项
地址

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