Improvements in welded steel pipe structures for aeroplanes,申请号GB19380037785-传众专利搜索

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发明名称	Improvements in welded steel pipe structures for aeroplanes
摘要
申请公布号	GB523125(A)	申请公布日期	1940.07.05
申请号	GB19380037785	申请日期	1938.12.29
申请人	SEE FABRIKS AKTIEBOLAG	发明人
分类号	B64C1/06	主分类号	B64C1/06
代理机构		代理人
主权项
地址

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