Improvements in or relating to ladders,申请号GB19570029407-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	GB844177(A)	申请公布日期	1960.08.10
申请号	GB19570029407	申请日期	1957.09.18
申请人	RAMSAY & SONS (FORFAR) LIMITED;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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