Deicing device for roofs,申请号US19470791229-传众专利搜索

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发明名称	Deicing device for roofs
摘要
申请公布号	US2507039(A)	申请公布日期	1950.05.09
申请号	US19470791229	申请日期	1947.12.12
申请人	MILLER FREDERICK W	发明人	MILLER FREDERICK W.
分类号	E04D13/076;E04D13/10;H05B3/00	主分类号	E04D13/076
代理机构		代理人
主权项
地址

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