B28B | SHAPING CLAY OR OTHER CERAMIC COMPOSITIONS; SHAPING SLAG; SHAPING MIXTURES CONTAINING CEMENTITIOUS MATERIAL, e.g. PLASTER (foundry moulding B22C; working stone or stone-like material B28D; shaping of substances in a plastic state, in general B29C; making layered products not composed wholly of these substances B32B) | |||||||||||||
Note(s) In this subclass, the following term is used with the meaning indicated:
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Subclass indexes
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Descriptions for B28B and notes/indexes are displayed on this screen.