Foldable escape ladders with adjustable rungs,申请号US19610091944-传众专利搜索

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发明名称	Foldable escape ladders with adjustable rungs
摘要
申请公布号	US3033310(A)	申请公布日期	1962.05.08
申请号	US19610091944	申请日期	1961.02.27
申请人	MCLEOD KENYON C	发明人	MCLEOD KENYON C.
分类号	E06C1/56	主分类号	E06C1/56
代理机构		代理人
主权项
地址

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