| IPC 7 English version |
| A21-A21B00700 |
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| SECTION A – HUMAN NECESSITIES |
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| A 21 | BAKING; EDIBLE DOUGHS |
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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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1/ | 00 | Bakers' ovens |
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1/ | 02 | . | characterised by the heating arrangements |
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1/ | 04 | . | . | Ovens heated by fire before baking only |
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1/ | 06 | . | . | Ovens heated by radiators |
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1/ | 08 | . | . | . | by steam-heated radiators |
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1/ | 10 | . | . | . | by radiators heated by fluids other than steam |
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1/ | 14 | . | . | . | Arrangement of radiators |
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1/ | 22 | . | . | . | by electric radiators (A21B 2/00 takes precedence; electric heating elements H05B) |
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1/ | 24 | . | . | Ovens heated by media flowing therethrough |
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1/ | 26 | . | . | . | by hot air |
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1/ | 28 | . | . | . | by gaseous combustion products |
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1/ | 33 | . | . | Ovens heated directly by combustion products (A21B 1/04 takes precedence) |
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1/ | 36 | . | . | Ovens heated directly by hot fluid (A21B 1/06, A21B 1/33 take precedence) |
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1/ | 40 | . | characterised by the means for regulating the temperature (temperature-sensitive elements G01K) |
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1/ | 42 | . | characterised by the baking surfaces moving during the baking (conveying in general B65G) |
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1/ | 44 | . | . | with surfaces rotating in a horizontal plane |
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1/ | 46 | . | . | with surfaces suspended from an endless conveyer or a revolving wheel |
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1/ | 48 | . | . | with surfaces in the form of an endless band |
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1/ | 50 | . | characterised by having removable baking surfaces |
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1/ | 52 | . | Portable ovens; Collapsible ovens (travelling or camp cookers A47J 33/00) |
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2/ | 00 | Baking apparatus employing high-frequency or infra-red heating |
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3/ | 00 | Parts or accessories of ovens |
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3/ | 02 | . | Doors; Flap gates (general features of doors E06B) |
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3/ | 04 | . | Air-treatment devices for ovens, e.g. regulating humidity |
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3/ | 07 | . | Charging or discharging ovens (A21B 3/18 takes precedence) |
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3/ | 10 | . | Means for illuminating ovens |
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3/ | 13 | . | Baking-tins; Baking forms |
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3/ | 15 | . | Baking sheets; Baking boards |
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3/ | 16 | . | Machines for cleaning or greasing baking surfaces |
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3/ | 18 | . | Discharging baked goods from tins (unpacking in general B65B 69/00) |
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5/ | 00 | Baking apparatus for special goods; Other baking apparatus |
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5/ | 02 | . | Apparatus for baking hollow articles, waffles, pastry, biscuits, or the like |
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5/ | 03 | . | . | for baking pancakes (frying pans A47J 37/10) [3] |
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5/ | 04 | . | Apparatus for baking cylindrical cakes on spits |
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5/ | 06 | . | Apparatus for baking in salt solution, e.g. for making pretzels |
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5/ | 08 | . | Apparatus for baking in baking fat or oil, e.g. for making doughnuts |
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7/ | 00 | Baking plants |
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