Stand-off for boarding ladder,申请号US19610129724-传众专利搜索

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发明名称	Stand-off for boarding ladder
摘要
申请公布号	US3056466(A)	申请公布日期	1962.10.02
申请号	US19610129724	申请日期	1961.08.07
申请人	WALL JR TOM D	发明人	JR. TOM D. WALL,
分类号	B63B27/14;E06C1/34	主分类号	B63B27/14
代理机构		代理人
主权项
地址

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