| IPC 7 English version |
| Class B04 |
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| SECTION B – PERFORMING OPERATIONS; TRANSPORTING |
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| B 04 | CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES |
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| Note |
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| Attention is drawn to the Notes following the subsection title "SEPARATING; MIXING" [pages 10 and 11]. [4] |
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| B 04 B | CENTRIFUGES (high-speed drum mills B02C 19/11; domestic spin driers D06F; analysing, measuring or monitoring physical or chemical properties of samples during centrifuging, see the relevant subclasses for these procedures, e.g. G01N) |
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| B 04 C | APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES (jet mills B02C 19/06; exhaust or silencing apparatus for machines or engines having means for removing solid constituents of exhaust, using inertial or centrifugal separators F01N 3/037; cyclonic type combustion apparatus F23) |
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