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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31/00
Rolling stand structures; Mounting, adjusting, or interchanging rolls, roll mountings, or stand frames
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B21B31/07
Adaptation of roll; neck; bearings
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B21B31/078
Sealing devices
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