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发明名称
Adjustable scaffolding
摘要
申请公布号
US2803502(A)
申请公布日期
1957.08.20
申请号
US19540428039
申请日期
1954.05.06
申请人
ELLINGER EARL H
发明人
ELLINGER EARL H.
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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