Improvements in and Relating to Hinge Elements for Step Ladders,申请号GB19790023031-传众专利搜索

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发明名称	Improvements in and Relating to Hinge Elements for Step Ladders
摘要
申请公布号	GB2051944(A)	申请公布日期	1981.01.21
申请号	GB19790023031	申请日期	1979.07.03
申请人	HUGHES P	发明人
分类号	E06C1/16;(IPC1-7):E05D11/10	主分类号	E06C1/16
代理机构		代理人
主权项
地址

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