DIFF Subgroup
B21J 19/02 Hearths; Air supply arrangements specially adapted therefor
Introduced: September 1968
Full Title
Full titles differ between systems:
IPC:
Blacksmiths' requisites not otherwise provided for > Hearths; Air supply arrangements specially adapted therefor
CPC:
Blacksmiths requisites not otherwise provided for > Hearths; Air supply arrangements specially adapted therefor
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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