发明名称 Device for lifting and tilting concrete panels
摘要 A device for both lifting and dumping of core material from long hollow core concrete panels. The device utilizes a pair of retractable clamp members to engage the longitudinal groove in the side of the panel.
申请公布号 US4398761(A) 申请公布日期 1983.08.16
申请号 US19810289712 申请日期 1981.08.03
申请人 FABCON, INCORPORATED 发明人 HANSON, DAVID W.;NASH, RICHARD C.;KOEHN, RICHARD R.
分类号 B66C1/42;(IPC1-7):B66C1/42 主分类号 B66C1/42
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