Improvements in or relating to ladders,申请号GB19480016377-传众专利搜索

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发明名称	Improvements in or relating to ladders
摘要
申请公布号	GB653924(A)	申请公布日期	1951.05.30
申请号	GB19480016377	申请日期	1948.06.18
申请人	JOHN KERR & COMPANY (MANCHESTER) LIMITED;HENRY GEORGE CLEMENTS	发明人
分类号	E06C7/08	主分类号	E06C7/08
代理机构		代理人
主权项
地址

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