Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B02
CRUSHING, PULVERISING, OR DISINTEGRATING; PREPARATORY TREATMENT OF GRAIN FOR MILLING
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B02C
CRUSHING, PULVERISING, OR DISINTEGRATING IN GENERAL; MILLING GRAIN
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4/00
Crushing or disintegrating by roller mills
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B02C4/02
with two or more rollers
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B02C4/08
with co-operating corrugated or toothed crushing-rollers
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