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发明名称
Platform attachment for stepladders
摘要
申请公布号
US1981423(A)
申请公布日期
1934.11.20
申请号
US19340737981
申请日期
1934.08.01
申请人
LEBRE VICTOR N
发明人
LEBRE VICTOR N.
分类号
E06C7/16
主分类号
E06C7/16
代理机构
代理人
主权项
地址
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