DIFF Main Group
B21C 1/00 Manufacture of metal sheets, wire, rods, tubes or like semi-manufactured products by drawing
Introduced: September 1968
Of 4 combined children, 2 exist in both systems.
2 codes are CPC-only extensions.
Child Classifications
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- B21C 1/02 Drawing metal wire or like flexible metallic material by drawing machines or apparatus in which the drawing action is effected by drums IPC+CPC Available in IPC and CPC
- B21C 1/16 Metal drawing by machines or apparatus in which the drawing action is effected by means other than drums, e.g. by a longitudinally-moved carriage pulling or pushing the work or stock for making metal sheets, rods or tubes IPC+CPC Available in IPC and CPC