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经营范围
发明名称
Safety scaffold pole
摘要
申请公布号
US2578228(A)
申请公布日期
1951.12.11
申请号
US19480033251
申请日期
1948.06.16
申请人
CLARK HOWARD H
发明人
CLARK HOWARD H.
分类号
E04G25/02
主分类号
E04G25/02
代理机构
代理人
主权项
地址
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