Improvements in jointing and reinforcing the composite parts of steel arches, props and cambered bars, for use in mines and like places,申请号GB19330002490-传众专利搜索

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发明名称	Improvements in jointing and reinforcing the composite parts of steel arches, props and cambered bars, for use in mines and like places
摘要
申请公布号	GB400468(A)	申请公布日期	1933.10.26
申请号	GB19330002490	申请日期	1933.01.26
申请人	FERDINAND RICHARDS	发明人
分类号	E21D11/22;E21D15/28	主分类号	E21D11/22
代理机构		代理人
主权项
地址

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