Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B04
CENTRIFUGAL APPARATUS OR MACHINES FOR CARRYING-OUT PHYSICAL OR CHEMICAL PROCESSES
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B04C
APPARATUS USING FREE VORTEX FLOW, e.g. CYCLONES
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7/00
Apparatus not provided for in group B04C1/00, B04C3/00, or B04C5/00; Multiple arrangements not provided for in one of the groups B04C1/00, B04C3/00, or B04C5/00; Combinations of apparatus covered by two or more of the groups B04C1/00, B04C3/00, or B04C5/00
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