A new or improved step ladder,申请号GB19440014241-传众专利搜索

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发明名称	A new or improved step ladder
摘要
申请公布号	GB586044(A)	申请公布日期	1947.03.05
申请号	GB19440014241	申请日期	1944.07.26
申请人	GRAVITY LADDERS LIMITED;CHARLES HAROLD BACH	发明人
分类号	E06C1/16;E06C7/08	主分类号	E06C1/16
代理机构		代理人
主权项
地址

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