1592953980000 1312632483000 term-81312 1616541216611 1312632579000 1616290147829 adlib fitz-online adlib-term-81312 60c94d68-c032-396a-9969-dbb010806299 2 1 scope note Screw or hydraulic-type jacks used as a cross bracing in a trench shoring system. STEIN reference term-81305 adlib-term-81305 5cdc8d38-dc92-3a6c-b925-2cf4e110dcfb trench jack V.TH.AFU.AXC.FCS.AFU.ARI.ARI 1 code V.TH.AFU.AXC.FCS.AFU.ARI.ARI 1 trench jacks reference term-81311 adlib-term-81311 84e35a67-5956-3d54-9813-d9df77ce44ba jacks (machinery) trench jacks term