Columbia subject headings:
Trademarks--Law and legislation--United States--Cases.
Trademarks--Law and legislation--United States--Outlines, syllabi, etc.
Harvard subject headings:
Trademarks--Law and legislation--United States--Cases
Trademarks--Law and legislation--United States--Outlines, syllabi, etc.
Princeton subject headings:
Trademarks--United States--Cases.
Trademarks--United States--Outlines, syllabi, etc.