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发明名称
Ladder construction
摘要
申请公布号
US2902110(A)
申请公布日期
1959.09.01
申请号
US19580733641
申请日期
1958.05.07
申请人
HOMER C. WIXSON
发明人
EICKHOLDT LAWRENCE A.
分类号
E06C1/397
主分类号
E06C1/397
代理机构
代理人
主权项
地址
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