发明名称 Force-resisting structure
摘要 A force-resisting structure, such as a press frame, is composed of a plurality of substantially planar loops each made from a single piece of metal plate. The loops are connected together in spaced, parallel relation by bolts which perform essentially no force-resisting function. The structure contains no welds. All components requiring machining are machined before assembly, and there are no machining operations thereafter.
申请公布号 US5027638(A) 申请公布日期 1991.07.02
申请号 US19900542319 申请日期 1990.06.22
申请人 FRIESTAD, ROLAND W. 发明人 FRIESTAD, ROLAND W.
分类号 B30B15/04 主分类号 B30B15/04
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