DIFF Subgroup
A47C 23/05 Frames therefor; Connecting the springs to the frame
Introduced: September 1968
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 > Frames therefor; Connecting the springs to the frame
Of 6 combined children, 2 exist in both systems.
3 codes are CPC-only extensions, 1 exist only in IPC.
IPC defines codes here since 1974.
Child Classifications
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- A47C 23/053 Attachment or interconnection of springs in frames or in spring units since 1974 IPC only IPC only
- A47C 23/057 Hangers or supports for fastening spring units to frame since 1974 IPC+CPC Available in IPC and CPC