DIFF Subgroup
B22F 3/11 Making porous workpieces or articles
Introduced: January 1995
Full Title
Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor > Sintering only > Making porous workpieces or articles
Of 5 combined children, 0 exist in both systems.
5 codes are CPC-only extensions.
Child Classifications
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