Descriptions for B21D and notes/indexes are displayed on this screen.
| B21D
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WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL (working or processing of wire B21F)
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Note(s)
This subclass covers cutting or perforating of sheet metal or other stock material.This subclass does not cover the working of metal foils in a manner analogous to the working of paper, which is covered by classes B26, B31.
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Subclass indexes
TREATMENT CHARACTERISED BY FUNCTION | Straightening | 1/00, 3/00, 25/00 | Bending | 11/00 | of sheets | 5/00, 13/00 | of rods | 7/00, 13/00 | of tubes | 9/00, 15/00 | Twisting | 11/00 | Corrugating or grooving or bending into waves | 13/00, 15/00, 17/00 | Punching, stamping, deep- drawing, spinning, high-energy forming | 22/00-28/00 | EDGE TREATMENT; CONNECTION OF PARTS | 19/00, 41/00; 39/00 | OTHER METHODS | 25/00, 31/00, 41/00 | COMBINED PROCESSES | 21/00, 35/00 | HANDLING | 43/00, 45/00 | OTHER AUXILIARY OPERATIONS | 33/00 | TOOLS | 37/00 | SAFETY | 55/00 | SPECIAL TREATMENT FOR THE MANUFACTURE OF SPECIFIED ARTICLES | 47/00-53/00 |
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