Columbia subject headings:
Commercial products--Classification.
Nice Agreement Concerning the International Classification of Goods and Services for the Purposes of the Registration of Marks
Trademarks (International law)
Trademarks--Classification.
Harvard subject headings:
Commercial products--Classification
Trademarks (International law)
Trademarks--Classification.
Princeton subject headings:
Commercial products--Classification.
Trademarks (International law)
Trademarks--Classification.