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经营范围
发明名称
Ladder
摘要
申请公布号
US2126171(A)
申请公布日期
1938.08.09
申请号
US19370150875
申请日期
1937.06.28
申请人
ALUMINUM LADDER CO.
发明人
CARBIS HENRY J.
分类号
E06C1/393
主分类号
E06C1/393
代理机构
代理人
主权项
地址
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