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经营范围
发明名称
Portable scaffold
摘要
申请公布号
US2308142(A)
申请公布日期
1943.01.12
申请号
US19410390600
申请日期
1941.04.26
申请人
GUY ALLOWAY
发明人
ALLOWAY GUY
分类号
E04G3/22
主分类号
E04G3/22
代理机构
代理人
主权项
地址
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