Box spring assembly with coated wire components
Box spring assembly with cross slats of different heights
Box spring assembly with end rail spring mounting units
Box spring assembly with improved end stiffness
Box spring assembly with improved spring installation capabiliti
Box spring assembly with improved stiffness characteristics
Box spring assembly with interlocked formed wire components and
Box spring assembly with limited deflection formed wire springs
Box spring assembly with modular twin continuous spring elements
Box spring construction
Box spring construction
Box spring corner guard
Box spring corner guard
Box spring corner support
Box spring cross rail incorporating extruded thrust bearing
Box spring grid and method of manufacture
Box spring having improved coil spring modules
Box spring having rows of coil springs formed from a single leng
Box spring having snap-on clip for spring securement
Box spring retainer