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PCE
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DIFF Subgroup
B03B 9/02

specially adapted for oil-sand, oil-chalk, oil-shales, ozokerite, bitumen, or the like

Introduced: September 1968

Full Title

General arrangement of separating plant, e.g. flow sheets > specially adapted for oil-sand, oil-chalk, oil-shales, ozokerite, bitumen, or the like

No child classifications to compare. This is a leaf node in both IPC and CPC.