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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13/00
Metal-rolling stands, i.e. an assembly composed of a stand frame, rolls, and accessories
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B21B13/16
with alternatively operative rolls; , e.g. revolver stands, turret mills
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