Elastic frame for fireproof feed-through of electric cables in walls of concrete or rock or the like,申请号US05/757224-传众专利搜索

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发明名称	Elastic frame for fireproof feed-through of electric cables in walls of concrete or rock or the like
摘要
申请公布号	USD253554(S1)	申请公布日期	1979.11.27
申请号	US05/757224	申请日期	1976.12.21
申请人		发明人
分类号		主分类号
代理机构		代理人
主权项
地址

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