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发明名称
LADDER STRUCTURE
摘要
申请公布号
US3949836(A)
申请公布日期
1976.04.13
申请号
US19740522150
申请日期
1974.11.08
申请人
RUSSO ORNAMENTAL IRON PRODUCTS, INC.
发明人
RUSSO, ADOLPH D.
分类号
E06C7/08;(IPC1-7):E06C7/50
主分类号
E06C7/08
代理机构
代理人
主权项
地址
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