LADDER SAFETY DEVICE,申请号GB19780002888-传众专利搜索

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发明名称	LADDER SAFETY DEVICE
摘要
申请公布号	GB1571376(A)	申请公布日期	1980.07.16
申请号	GB19780002888	申请日期	1978.01.24
申请人	NORTON CO	发明人
分类号	E06C7/18;(IPC1-7):E06C7/18	主分类号	E06C7/18
代理机构		代理人
主权项
地址

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