Patent classifications
B
PERFORMING OPERATIONS; TRANSPORTING
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B21
MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
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B21B
ROLLING OF METAL
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28/00
Maintaining rolls or rolling equipment in effective condition
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B21B28/02
Maintaining rolls in effective condition, e.g. reconditioning
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B21B28/04
while in use, e.g. polishing; or grinding while the rolls are in their stands
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