DIFF Subgroup
A47C 23/28 Tensioning devices therefor
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
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. of flat type > Tensioning devices therefor
CPC:
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) > Tensioning devices therefor
No child classifications to compare. This is a leaf node in both IPC and CPC.