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发明名称
Foot rest and work platform attachment for ladders
摘要
申请公布号
US2948349(A)
申请公布日期
1960.08.09
申请号
US19580765602
申请日期
1958.10.06
申请人
REDDY JOHN W
发明人
REDDY JOHN W.
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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