Improvements in or relating to ladders,申请号GB19440017751-传众专利搜索

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发明名称	Improvements in or relating to ladders
摘要
申请公布号	GB583138(A)	申请公布日期	1946.12.10
申请号	GB19440017751	申请日期	1944.09.16
申请人	GRAVITY LADDERS LIMITED;CHARLES HAROLD BACH	发明人
分类号	E06C1/32	主分类号	E06C1/32
代理机构		代理人
主权项
地址

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