Patent Classification Explorer PCE

DIFF Main Group

B21C 33/00

Feeding extrusion presses with metal to be extruded

Introduced: September 1968

CPC subdivides this area 5x more granularly than IPC with 4 additional codes.

4 codes are CPC-only extensions.

Child Classifications

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B21C 33/002 CPC only CPC only
B21C 33/004 CPC only CPC only
B21C 33/006 CPC only CPC only
B21C 33/008 CPC only CPC only
B21C 33/02 the metal being in liquid form IPC+CPC Available in IPC and CPC