DIFF Subgroup
B21D 37/20 Making tools by operations not covered by a single other subclass
Introduced: September 1968
Title
Titles differ between systems:
IPC: Making tools by operations not covered a single other subclass
CPC: Making tools by operations not covered by a single other subclass
Full Title
Full titles differ between systems:
IPC:
Tools as parts of machines covered by this subclass > Making tools by operations not covered a single other subclass
CPC:
Tools as parts of machines covered by this subclass > Making tools by operations not covered by a single other subclass
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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