Skip to content
PCE
Search Classifications
Search for IPC and CPC classification codes or keywords
DIFF Subgroup
B28B 21/24

using compacting heads, rollers, or the like

Introduced: September 1968

Full Title

Methods or machines specially adapted for the production of tubular articles > by casting into moulds > using compacting means > using rotatable mould or core parts > using compacting heads, rollers, or the like

CPC subdivides this area 3x more granularly than IPC with 3 additional codes.

3 codes are CPC-only extensions.

Child Classifications

Navigate with arrow keys, Enter to open

  • B28B 21/242 CPC only CPC only
  • B28B 21/245 CPC only CPC only
  • B28B 21/247 CPC only CPC only
  • B28B 21/26 with a packer head serving as a sliding mould or provided with guiding means for feeding the material IPC+CPC Available in IPC and CPC
  • B28B 21/28 combined with vibration means IPC+CPC Available in IPC and CPC