Improvements in and relating to ladders,申请号GB19580011959-传众专利搜索

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发明名称	Improvements in and relating to ladders
摘要
申请公布号	GB844103(A)	申请公布日期	1960.08.10
申请号	GB19580011959	申请日期	1958.04.15
申请人	ROBERT SCOTT RAMSAY	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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