Improvements in or relating to working and loading platform for gallery work in tunnels,申请号GB19310022272-传众专利搜索

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发明名称	Improvements in or relating to working and loading platform for gallery work in tunnels
摘要
申请公布号	GB376049(A)	申请公布日期	1932.07.07
申请号	GB19310022272	申请日期	1931.08.06
申请人	CRISTOPHER HENRIK HOELFELDT LUND	发明人
分类号	E21D9/00	主分类号	E21D9/00
代理机构		代理人
主权项
地址

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