Improvements in or relating to telescopic wheeled ladders,申请号GB19470000347-传众专利搜索

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发明名称	Improvements in or relating to telescopic wheeled ladders
摘要
申请公布号	GB632677(A)	申请公布日期	1949.11.28
申请号	GB19470000347	申请日期	1947.01.04
申请人	GEORGE THOMSON GIBSON;WILLIAM WILSON RAMSAY	发明人
分类号	E06C5/16	主分类号	E06C5/16
代理机构		代理人
主权项
地址

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