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发明名称
Portable utility platform unit
摘要
A portable utility platform unit adapted to be employed in combination with other such units to cooperatively provide a temporary support surface upon roof trusses or floor joists for workers in the building trades.
申请公布号
US5148890(A)
申请公布日期
1992.09.22
申请号
US19910743987
申请日期
1991.08.12
申请人
SIPE, LINUS A.
发明人
SIPE, LINUS A.
分类号
E04D15/00;E04G3/26
主分类号
E04D15/00
代理机构
代理人
主权项
地址
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