DIFF Subgroup
A47J 41/02 Vacuum-jacket vessels, e.g. vacuum bottles
Introduced: September 1968
Full Title
Thermally-insulated vessels, e.g. flasks, jugs, jars > Vacuum-jacket vessels, e.g. vacuum bottles
Of 1 combined children, 0 exist in both systems.
1 codes are CPC-only extensions.
Child Classifications
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