One-way hinge damper
One-way plow
Oor hinge
Open and close control device for a horizontally slidable...
Open bottom box culvert
Open bottom fiber reinforced precast concrete arch unit
Open bottom float tension riser
Open cast mining apparatus
Open cell sheeting
Open end cutting shoe
Open framework, especially for building purposes
Open grid fabric for reinforcing wall systems, wall segment...
Open gutter strainer
Open hole anchor
Open hole expandable patch with anchor
Open hole frac system
Open hole non-rotating sleeve and assembly
Open hole packer of the sleeve type
Open hole straddle system and method for setting such a system
Open hole straddle tool