CPC Subgroup
A47C 23/04 using springs in compression, e.g. coiled
Full Title
Spring mattresses with rigid frame or forming part of the bedstead, e.g. box springs; Divan bases; Slatted bed bases > using springs in compression, e.g. coiled
3 direct subcodes
Child Classifications
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- A47C 23/043 using wound springs
- A47C 23/047 incorporating inflatable elements
- A47C 23/05 Frames therefor; Connecting the springs to the frame