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经营范围
发明名称
Adjustable scaffold
摘要
申请公布号
US2729516(A)
申请公布日期
1956.01.03
申请号
US19520271349
申请日期
1952.02.13
申请人
HARRY COLVIN
发明人
COLVIN HARRY
分类号
E04G1/34
主分类号
E04G1/34
代理机构
代理人
主权项
地址
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