DIFF Subgroup
B22F 3/20 by extruding
Introduced: September 1968
Full Title
Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor > by extruding
Of 4 combined children, 0 exist in both systems.
4 codes are CPC-only extensions.
Note: 3 CPC extensions are marked as secondary classification only.
Child Classifications
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