CPC Subgroup
A47C 23/26 Frames therefor; Connecting the springs to the frame
Full Title
Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases > using tensioned springs, e.g. flat type (A47C23/02 takes precedence) > Frames therefor; Connecting the springs to the frame