Improvements relating to truss girders of round section steel,申请号GB19570020145-传众专利搜索

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发明名称	Improvements relating to truss girders of round section steel
摘要
申请公布号	GB865441(A)	申请公布日期	1961.04.19
申请号	GB19570020145	申请日期	1957.06.26
申请人	OTMAR NERATH	发明人
分类号	E04C3/04;E04C3/08;E04H12/10	主分类号	E04C3/04
代理机构		代理人
主权项
地址

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