IPC Subgroup
B28B 7/22 Moulds for making units for prefabricated buildings; Moulds for making prefabricated stair units
Introduced: September 1968
Last revised: January 2006
Full Title
Moulds; Cores; Mandrels > Moulds for making units for prefabricated buildings; Moulds for making prefabricated stair units
Classification Context
- Section:
- PERFORMING OPERATIONS; TRANSPORTING
- Class:
- WORKING CEMENT, CLAY, OR STONE
- Subclass:
- SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER
Related Keywords
moulding BUILDING(S) blocks from clay or other ceramic compositions or cementitious materialmoulding CONCRETE building blocks