| IPC 7 English version |
| Class A21 |
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| SECTION A – HUMAN NECESSITIES |
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| FOODSTUFFS; TOBACCO |
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| A 21 | BAKING; EDIBLE DOUGHS |
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| Note |
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| Processes using enzymes or micro-organisms in order to: |
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| (i) | liberate, separate or purify a pre-existing compound or composition, or to |
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| (ii) | treat textiles or clean solid surfaces of materials |
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| are further classified in subclass C12S. [5] |
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| A 21 B | BAKERS' OVENS; MACHINES OR EQUIPMENT FOR BAKING (domestic baking equipment A47J 37/00; combustion apparatus F23; domestic stoves or ranges being wholly or partly ovens F24B, F24C) |
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| A 21 C | MACHINES OR EQUIPMENT FOR MAKING OR PROCESSING DOUGHS; HANDLING BAKED ARTICLES MADE FROM DOUGH |
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| A 21 D | TREATMENT, e.g. PRESERVATION, OF FLOUR OR DOUGH, e.g. BY ADDITION OF MATERIALS; BAKING; BAKERY PRODUCTS; PRESERVATION THEREOF |
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